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Palace of Westminster

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Palace of Westminster
The Palace of Westminster with Elizabeth Tower and Westminster Bridge viewed from across the River Thames
The Palace of Westminster with Elizabeth Tower and Westminster Bridge viewed from across the River Thames
Location City of Westminster, London, United Kingdom
Coordinates 51°29′57″N 00°07′29″W Coordinates: 51°29′57″N 00°07′29″W
Built Middle Ages
Demolished 1834 ( due to fire)
Rebuilt 1840–70
Architectural style(s) Perpendicular Gothic
Official name: Westminster Palace, Westminster Abbey and St Margaret's Church
Type Cultural
Criteria i, ii, iv
Designated 1987 (11th session)
Reference No. 426
Country United Kingdom
Region Europe and North America
Extensions 2008
Listed Building – Grade I
Official name: Houses of Parliament / The Palace of Westminster
Designated 5 February 1970
Reference No. 1226284
Palace of Westminster is located in Central London
Location of the Palace of Westminster in central London

The Palace of Westminster is the meeting place of the House of Commons and the House of Lords, the two houses of the Parliament of the United Kingdom. Commonly known as the Houses of Parliament after its tenants, the Palace lies on the Middlesex bank of the River Thames in the City of Westminster, in central London. Its name, which derives from the neighbouring Westminster Abbey, may refer to either of two structures: the Old Palace, a medieval building complex that was destroyed by fire in 1834, and its replacement New Palace that stands today. For ceremonial purposes, the palace retains its original style and status as a royal residence.

The first royal palace was built on the site in the eleventh century, and Westminster was the primary London residence of the Kings of England until a fire destroyed much of the complex in 1512. After that, it served as the home of Parliament, which had been meeting there since the thirteenth century, and the seat of the Royal Courts of Justice, based in and around Westminster Hall. In 1834, an even greater fire ravaged the heavily rebuilt Houses of Parliament, and the only structures of significance to survive were Westminster Hall, the Cloisters of St Stephen's, the Chapel of St Mary Undercroft and the Jewel Tower.

The subsequent competition for the reconstruction of the Palace was won by architect Charles Barry and his design for a building in the Perpendicular Gothic style. The remains of the Old Palace (with the exception of the detached Jewel Tower) were incorporated in its much larger replacement, which contains over 1,100 rooms organised symmetrically around two series of courtyards. Part of the New Palace's area of 3.24 hectares (8 acres) was reclaimed from the Thames, which is the setting of its principal façade, the 266-metre (873 ft) river front. Barry was assisted by Augustus W. N. Pugin, a leading authority on Gothic architecture and style, who provided designs for the decoration and furnishings of the Palace. Construction started in 1840 and lasted for thirty years, suffering great delays and cost overruns, as well as the death of both leading architects; works for the interior decoration continued intermittently well into the twentieth century. Major conservation work has been carried out since, due to the effects of London's air pollution, and extensive repairs took place after the Second World War, including the reconstruction of the Commons Chamber following its bombing in 1941.

The Palace is one of the centres of political life in the United Kingdom; "Westminster" has become a metonym for the UK Parliament, and the Westminster system of government has taken its name after it. The Elizabeth Tower, in particular, which is often referred to by the name of its main bell, " Big Ben", is an iconic landmark of London and the United Kingdom in general, one of the most popular tourist attractions in the city and an emblem of parliamentary democracy. The Palace of Westminster has been a Grade I listed building since 1970 and part of a UNESCO World Heritage Site since 1987.


Old Palace

Conjectural restoration of Westminster during the reign of Henry VIII, by H. J. Brewer, 1884

The Palace of Westminster site was strategically important during the Middle Ages, as it was located on the banks of the River Thames. Known in medieval times as Thorney Island, the site may have been first-used for a royal residence by Canute the Great during his reign from 1016 to 1035. St Edward the Confessor, the penultimate Saxon monarch of England, built a royal palace on Thorney Island just west of the City of London at about the same time as he built Westminster Abbey (1045–50). Thorney Island and the surrounding area soon became known as Westminster (a contraction of the words West Minster). Neither the buildings used by the Saxons nor those used by William I survive. The oldest existing part of the Palace (Westminster Hall) dates from the reign of William I's successor, King William II.

The Palace of Westminster was the monarch's principal residence in the late Medieval period. The predecessor of Parliament, the Curia Regis (Royal Council), met in Westminster Hall (although it followed the King when he moved to other palaces). The Model Parliament, the first official Parliament of England, met in the Palace in 1295; almost all subsequent Parliaments have met there.

In 1530, King Henry VIII acquired York Place from Cardinal Thomas Wolsey, a powerful minister who had lost the King's favour. Renaming it the Palace of Whitehall, Henry used it as his principal residence. Although Westminster officially remained a royal palace, it was used by the two Houses of Parliament and by the various royal law courts.

The Old Palace  was a complex of buildings, separated from the River Thames in the east by a series of gardens. The largest and northernmost building is Westminster Hall, which lies parallel to the river. Several buildings adjoin it on the east side, south of those and perpendicular to the Hall is the mediaeval House of Commons, further south and parallel to the river is the Court of Requests, with an eastwards extension at its south end, and at the south end of the complex lie the House of Lords and another chamber. The Palace was bounded by St Margaret's Street to the west and Old Palace Yard to the south-west; another street, New Palace Yard, is just visible to the north.
A detail from John Rocque's 1746 map of London. St Stephen's Chapel, labelled "H of Comm" (House of Commons), is adjacent to Westminster Hall; the Parliament Chamber—labelled "H of L" (House of Lords)—and the Prince's Chamber are to the far south. The Court of Requests, between the two Houses, became the new home of the Lords in 1801. At the north-east, by the river, stands Speaker's House.

Because it was originally a royal residence, the Palace included no purpose-built chambers for the two Houses. Important state ceremonies were held in the Painted Chamber. The House of Lords originally met in the Queen's Chamber, a modest Medieval hall at the south end of the complex. In 1801 the Upper House moved into the larger White Chamber, which had formerly housed the Court of Requests; the expansion of the Peerage by King George III during the 18th century, along with the imminent Act of Union with Ireland, necessitated the move, as the original chamber could not accommodate the increased number of peers.

The House of Commons, which did not have a chamber of its own, sometimes held its debates in the Chapter House of Westminster Abbey. The Commons acquired a permanent home at the Palace in the form of St Stephen's Chapel, the former chapel of the royal palace, during the reign of Edward VI. In 1547 the building became available for the Commons' use following the disbanding of St Stephen's College. Alterations were made to St Stephen's Chapel over the following three centuries for the convenience of the lower House, gradually destroying its original mediaeval appearance.

The Palace of Westminster as a whole began to see significant alterations from the 18th century onwards, as Parliament struggled to carry out its business in the limited available space and ageing buildings. Calls for an entirely new palace went unheeded as instead more buildings were added. A new west façade facing onto St Margaret's Street was built in the Palladian style between 1755 and 1770, providing more space for document storage and committee rooms. A new official residence for the Speaker of the House of Commons was built adjoining St Stephen's Chapel and completed in 1795. The neo-Gothic architect James Wyatt also carried out works on both the House of Lords and Commons between 1799 and 1801.

The palace complex was substantially remodelled once again, this time by Sir John Soane, between 1824 and 1827. The mediaeval House of Lords chamber, which had been the target of the failed Gunpowder Plot of 1605, was demolished as part of this work in order to create a new Royal Gallery and ceremonial entrance at the southern end of the palace. Soane's work at the palace also included new library facilities for both Houses of Parliament and new law courts for the Chancery and King's Bench. Soane's alterations caused controversy due to his use of neo-classical architectural styles, which conflicted with the Gothic style of the original buildings.

Fire and reconstruction

J. M. W. Turner watched the fire of 1834 and painted several canvasses depicting it, including The Burning of the Houses of Lords and Commons (1835).

On 16 October 1834, a fire broke out in the Palace after an overheated stove used to destroy the Exchequer's stockpile of tally sticks set fire to the House of Lords Chamber. In the resulting conflagration both Houses of Parliament were destroyed, along with most of the other buildings in the palace complex. Westminster Hall was saved thanks to fire-fighting efforts and a change in the direction of the wind. The Jewel Tower, the Undercroft Chapel and the Cloisters and Chapter House of St Stephen's were the only other parts of the Palace to survive.

Immediately after the fire, King William IV offered the almost-completed Buckingham Palace to Parliament, hoping to dispose of a residence he disliked. The building was considered unsuitable for parliamentary use, however, and the gift was rejected. Proposals to move to Charing Cross or St James's Park had a similar fate; the allure of tradition and the historical and political associations of Westminster proved too strong for relocation, despite the deficiencies of that site. In the meantime, the immediate priority was to provide accommodation for the next Parliament, and so the Painted Chamber and White Chamber were hastily repaired for temporary use by the Houses of Lords and Commons respectively, under the direction of the only remaining architect of the Metropolitan Board of Works, Sir Robert Smirke. Works proceeded quickly and the chambers were ready for use by February 1835.

In his speech opening Parliament in 1835, the King assured the members that the fire was accidental, and left it to Parliament itself to make "plans for [its] permanent accommodation." Each house created a committee and a public debate over the proposed styles ensued. The neo-Classical approach, similar to that of the White House and the Federal Capitol in the United States, was popular at the time and had already been used by Soane in his additions to the old palace, but had connotations of revolution and republicanism, whereas Gothic design embodied conservative values. The committee in the House of Lords announced in June 1835 that "the style of the buildings should be either Gothic or Elizabethan". On 14 July 1835 a Royal Commission was appointed. The chairman was Charles Hanbury-Tracy and the other members were Edward Cust, Thomas Liddell, the poet Samuel Rogers and the artist George Vivian. The Commission accepted the recommendation of a competition, and architects began submitting proposals following some basic criteria.

Portrait of Sir Charles Barry
Sir Charles Barry conceived the winning design for the New Houses of Parliament and supervised its construction until his death in 1860.

In February 1836, after studying 97 proposals, the Commission chose Charles Barry's plan for a Gothic-style palace, awarding him a prize (or “premium”) of £1500. Premiums of £500 each were given to David Hamilton, J.C. Buckler and William Railton. The Architectural Magazine summarised Barry’s winning plan as "a quadrangular pile, with the principal front facing the Thames, and a tower in the centre, 170ft. high". Augustus Pugin was instrumental in helping Barry win the Commission. Pugin's contribution can be seen in the gothic detail, the vanes and spires. Pugin also contributed greatly to the interior design.

The foundation stone was laid in 1840; the Lords Chamber was completed in 1847, and the Commons Chamber in 1852 (at which point Barry received a knighthood). Although most of the work had been carried out by 1860, construction was not finished until a decade afterwards. Barry, whose own architectural style was more classical than Gothic, built the new palace upon the neo-classical principle of symmetry. He relied heavily on Augustus Pugin for the sumptuous and distinctive Gothic interiors, including wallpapers, carvings, stained glass, floor tiles, metalwork and furniture.


With the building itself taking shape, it was time to think about its internal adornments. In a process overseen by a Royal Fine Art Commission under the presidency of Prince Albert, a Select Committee which included Sir Robert Peel started to take witness accounts from experts in 1841. Those experts included Sir Martin Archer Shee, P.R.A., and Charles Lock Eastlake, painter and acknowledged authority on art history, soon to be first director of the National Gallery and de facto administrator of the whole Westminster decoration project. It was decided that the opportunity should be seized to encourage the development of a national British school of History Painting, and that the paintings should be done in fresco. The call for artists to submit proposals resulted in a first exhibition in 1843 at Westminster Hall in which 140 cartoons were shown. Others followed but the progress was slow. Fresco proved to be a problematic technique for the English climate. The wall surfaces to be covered being vast, a number of paintings were in fact done in oil on canvas. With the death of Prince Albert in 1861, the scheme lost its driving force. But by then, many paintings were completed or underway. William Dyce, who was the first to start fresco work in 1848, died in 1864, completing only five of seven commissioned works. The other major contributors were John Rogers Herbert, finishing in 1864 but having had some commissions cancelled, Charles West Cope who worked until 1869, Edward Matthew Ward until 1874, Edward Armitage, George Frederic Watts, John Callcott Horsley, John Tenniel and Daniel Maclise. In the 20th century, further paintings were commissioned from other artists.

Recent history

In the course of the German bombing of London during the Second World War (see The Blitz), the Palace of Westminster was hit by bombs on fourteen separate occasions. One bomb fell into Old Palace Yard on 26 September 1940 and severely damaged the south wall of St Stephen's Porch and the west front. The statue of Richard the Lionheart was lifted from its pedestal by the force of the blast, and its upheld sword bent, an image that was used as a symbol of the strength of democracy, "which would bend but not break under attack". Another bomb destroyed much of the Cloisters on 8 December.

The old chamber of the House of Commons was in use between 1852 and 1941, when it was destroyed by German bombs in the course of the Second World War.

The worst raid took place in the night of 10/11 May 1941, when the Palace took at least twelve hits and three people were killed. An incendiary bomb hit the chamber of the House of Commons and set it on fire; another set the roof of Westminster Hall alight. The firefighters could not save both, and a decision was taken to try to rescue the Hall. In this they were successful; the abandoned Commons Chamber, on the other hand, was completely destroyed, as was the Members' Lobby. A bomb also struck the Lords Chamber, but went through the floor without exploding. The Elizabeth Tower took a hit by a small bomb or anti-aircraft shell at the eaves of the roof, suffering much damage there. All the glass on the south dial was blown out, but the hands and bells were not affected, and the Great Clock continued to keep time accurately.

Following the destruction of the Commons Chamber, the Lords offered their own debating chamber for the use of the Commons; for their own sittings the Queen's Robing Room was converted into a makeshift chamber. The Commons Chamber was rebuilt after the war under the architect Sir Giles Gilbert Scott, in a simplified version of the old chamber's style. The work, which was undertaken by John Mowlem & Co., was completed in 1950, whereupon both Houses returned to their chambers.

As the need for office space in the Palace increased, Parliament acquired office space in the nearby Norman Shaw Building in 1975, and more recently in the custom-built Portcullis House, completed in 2000. This increase has now allowed all MPs to have their own office facilities.

In 2010, plans were announced that may see the palace or at least, some parts of the complex of venues, become available for hire as a wedding venue, banquet hall and so on. This was announced in a bid to curb spending and in particular, the large costs attributed to the provision of catering to the staff and visitors to the Palace of Westminster. Plans for the Palace of Westminster to become a wedding venue for hire As of June 2011, no official conformation of this has been declared though plans are likely to take a considerable amount of time to finalise due to the considerable amount of bureaucracy and legislation associated with the usage of such a historically important venue. There are also of course significant and viable security concerns which would need to be addressed.


River front of the Palace of Westminster

View from across the Thames in the morning...
...and at dusk. Portcullis House is visible on the right.

Sir Charles Barry's collaborative design for the Palace of Westminster uses the Perpendicular Gothic style, which was popular during the 15th century and returned during the Gothic revival of the 19th century. Barry was a classical architect, but he was aided by the Gothic architect Augustus Pugin. Westminster Hall, which was built in the 11th century and survived the fire of 1834, was incorporated in Barry's design. Pugin was displeased with the result of the work, especially with the symmetrical layout designed by Barry; he famously remarked, "All Grecian, sir; Tudor details on a classic body".


The stonework of the building was originally Anstone, a sand-coloured magnesian limestone quarried in the villages of Anston, South Yorkshire and Mansfield Woodhouse, Nottinghamshire. The two quarries were chosen from a list of 102, with the majority of the stone coming from the former. A crucial consideration was transportation, achieved on water via the Chesterfield Canal, the North Sea, and the rivers Trent and Thames.

The stone, however, soon began to decay due to pollution and the poor quality of some of the stone used. Although such defects were clear as early as 1849, nothing was done for the remainder of the 19th century even after much studying. During the 1910s, however, it became clear that some of the stonework had to be replaced. In 1928 it was deemed necessary to use Clipsham Stone, a honey-coloured limestone from Rutland, to replace the decayed Anston. The project began in the 1930s but was halted due to the Second World War, and completed only during the 1950s. By the 1960s pollution had once again begun to take its toll. A stone conservation and restoration programme to the external elevations and towers began in 1981, and ended in 1994. As of October 2012, the north wall of Westminster Hall is undergoing restoration. Parliamentary Debates, House of Commons, 15 October 2012, column 1W. The restoration of the inner courtyards is also ongoing. As of April 2012, four have been completed, including the two largest (Speaker's Court and Royal Court); the rest are scheduled to be completed by October 2016. Parliamentary Debates, House of Lords, 30 April 2012, column 1927.


The Victoria Tower was the most conspicuous feature of Charles Barry's design for the New Palace of Westminster. At the time of its completion, it was the tallest secular building in the world.

The Palace of Westminster features three main towers. Of these, the largest and tallest is the 98.5-metre (323 ft) Victoria Tower, which occupies the south-western corner of the Palace. Called "King's Tower" at the time, in honour of the then-reigning monarch, William IV, the tower was an integral part of Barry's original design, of which he intended it to be the most memorable element. The architect conceived the great square tower as the keep of a legislative "castle" (echoing his selection of the portcullis as his identifying mark in the planning competition), and used it as the royal entrance to the Palace and as a fireproof repository for the archives of Parliament. The Victoria Tower was re-designed several times, and its height increased progressively; upon its completion in 1858, it was the tallest secular building in the world.

At the base of the tower is the Sovereign's Entrance, used by the monarch whenever entering the Palace to open Parliament or for other state occasions. The 15 m (50 ft) high archway is richly decorated with sculptures, including statues of Saints George, Andrew and Patrick, as well as of Queen Victoria herself. The main body of the Victoria Tower houses the three million documents of the Parliamentary Archives in 8.8 kilometres (5.5 mi) of steel shelves spread over 12 floors; these include the master copies of all Acts of Parliament since 1497, and important manuscripts such as the original Bill of Rights and the death warrant of King Charles I. At the top of the cast-iron pyramidal roof is a 22 m (73 ft) flagstaff, from which flies the Royal Standard (the monarch's personal flag) when the Sovereign is present in the Palace. On the days when either House of Parliament is sitting and on designated flag days, the Union Flag flies from the mast.

The Elizabeth Tower's fame has surpassed that of the Palace itself. The structure has largely become synonymous with Big Ben, the heaviest of the five bells it houses.

At the north end of the Palace rises the most famous of the towers, the Elizabeth Tower, commonly known as Big Ben. At 96 metres (316 ft), it is only slightly shorter than the Victoria Tower but much slimmer. It houses the Great Clock of Westminster, built by Edward John Dent on designs by amateur horologist Edmund Beckett Denison. Striking the hour to within a second of the time, the Great Clock achieved standards of accuracy considered impossible by 19th-century clockmakers, and it has remained consistently reliable since it entered service in 1859. The time is shown on four dials 7 metres (23 ft) in diameter, which are made of milk glass and are lit from behind at night; the hour hand is 2.7 metres (8 ft 10 in) long and the minute hand 4.3 metres (14 ft). The Elizabeth Tower was designed by Augustus Pugin and built after his death. Charles Barry asked Pugin to design the clock tower because Pugin had previously helped Barry design the Palace In the 2012 BBC4 documentary, Richard Taylor gives a description of Pugin's Clock Tower: 'It rises up from the ground in this stately rhythm, higher and higher, before you reach the clock face, picked out as a giant rose, its petals fringed with gold. Medieval windows above that and then it hits the grey slate roof, its greyness relieved by those delicate little windows again picked out in gold leaf. And then rises up again in a great jet of gold to the higher roof that curves gracefully upwards to a spire with a crown and flowers and a cross. It's elegant and grand and has fairy tale qualities'.

Five bells hang in the belfry above the clock. The four quarter bells strike the Westminster Chimes every quarter hour. The largest bell strikes the hours; officially called The Great Bell of Westminster, it is generally referred to as Big Ben, a nickname of uncertain origins which, over time, has been colloquially applied to the whole tower. The first bell to bear this name cracked during testing and was recast; the present bell later developed a crack of its own, which gives it a distinctive sound. It is the third-heaviest bell in Britain, weighing 13.8 tonnes. In the lantern at the top of the Elizabeth Tower is the Ayrton Light, which is lit when either House of Parliament is sitting after dark. It was installed in 1885 at the request of Queen Victoria—so that she could see from Buckingham Palace whether the members were "at work"—and named after Acton Smee Ayrton, who was First Commissioner of Works in the 1870s.

The slender form of the Central Tower, which was designed as a spire, markedly contrasts with the more massive square towers at the ends of the Palace.

The shortest of the Palace's three principal towers (at 91 metres (299 ft)), the octagonal Central Tower stands over the middle of the building, immediately above the Central Lobby. It was added to the plans on the insistence of Dr. David Boswell Reid, who was in charge of the ventilation of the new Houses of Parliament: his plan called for a great central chimney through which what he called "vitiated air" would be drawn out of the building with the heat and smoke of about four hundred fires around the Palace. To accommodate the tower, Barry was forced to lower the lofty ceiling he had planned for the Central Lobby and reduce the height of its windows; however, the tower itself proved to be an opportunity to improve the Palace's exterior design, and Barry chose for it the form of a spire in order to balance the effect of the more massive lateral towers. In the end, the Central Tower failed completely to fulfill its stated purpose, but it is notable as "the first occasion when mechanical services had a real influence on architectural design".

Apart from the pinnacles which rise from between the window bays along the fronts of the Palace, numerous turrets enliven the building's skyline. Like the Central Tower, these have been added for practical reasons, and mask ventilation shafts.

There are some other features of the Palace of Westminster which are also known as towers. St Stephen's Tower is positioned in the middle of the west front of the Palace, between Westminster Hall and Old Palace Yard, and houses the public entrance to the Houses of Parliament, known as St Stephen's Entrance. The pavilions at the northern and southern ends of the river front are called Speaker's Tower and Chancellor's Tower respectively, after the presiding officers of the two Houses at the time of the Palace's reconstruction—the Speaker of the House of Commons and the Lord Chancellor. The Speaker's Tower contains the Speaker's House, the official residence of the Speaker of the Commons.


Cromwell Green, outside Westminster Hall, is the site of Hamo Thornycroft's bronze statue of Oliver Cromwell, erected amid controversy in 1899.

There are a number of small gardens surrounding the Palace of Westminster. Victoria Tower Gardens is open as a public park along the side of the river south of the palace. Black Rod's Garden (named after the office of Gentleman Usher of the Black Rod) is closed to the public and is used as a private entrance. Old Palace Yard, in front of the Palace, is paved over and covered in concrete security blocks (see security below). Cromwell Green (also on the frontage, and in 2006 enclosed by hoardings for the construction of a new visitor centre), New Palace Yard (on the north side) and Speaker's Green (directly north of the Palace) are all private and closed to the public. College Green, opposite the House of Lords, is a small triangular green commonly used for television interviews with politicians.


The Palace of Westminster contains over 1,100 rooms, 100 staircases and 4.8 kilometres (3 mi) of passageways, which are spread over four floors. The ground floor is occupied by offices, dining rooms and bars; the first floor (known as the principal floor) houses the main rooms of the Palace, including the debating chambers, the lobbies and the libraries. The top-two floors are used as committee rooms and offices.

Some of the interiors were designed and painted by J.G. Crace, working in collaboration with Pugin and others. For example Crace decorated and gilded the ceiling of the Chapel of St. Mary Undercroft.


Layout of the principal floor (north is to the right). The debating chambers of the two Houses and their ante-rooms lie on opposite sides of the Central Lobby and are part of the central spine of the Palace, which includes the suite of ceremonial rooms to the south. The Victoria Tower occupies the south-west corner and the Speaker's House takes up the north-east corner; the Elizabeth Tower is at the far north and Westminster Hall protrudes to the west.

Instead of one main entrance, the Palace features separate entrances for the different user groups of the building. The Sovereign's Entrance, at the base of the Victoria Tower, is located in the south-west corner of the Palace and is the starting point of the royal procession route, the suite of ceremonial rooms used by the monarch at State Openings of Parliament. This consists of the Royal Staircase, the Norman Porch, the Robing Room, the Royal Gallery and the Prince's Chamber, and culminates in the Lords Chamber, where the ceremony takes place. Members of the House of Lords use the Peers' Entrance in the middle of the Old Palace Yard front, which is covered by a stone carriage porch and opens to an entrance hall. A staircase from there leads, through a corridor, to the Prince's Chamber.

Members of Parliament enter their part of the building from the Members' Entrance in the south side of New Palace Yard. Their route passes through a cloakroom in the lower level of the Cloisters and eventually reaches the Members' Lobby directly south of the Commons Chamber. From New Palace Yard, access can also be gained to the Speaker's Court and the main entrance of the Speaker's House, located in the pavilion at the north-east corner of the Palace.

St Stephen's Entrance, roughly in the middle of the building's western front, is the entrance for members of the public. From there, visitors walk through a series of hallways and flights of stairs which bring them to the level of the principal floor and to the octagonal Central Lobby, the hub of the Palace. This hall is flanked by symmetrical corridors decorated with fresco paintings, which lead to the ante-rooms and debating chambers of the two Houses: the Members' Lobby and Commons Chamber to the north, and the Peers' Lobby and Lords Chamber to the south. Another mural-lined corridor leads east to the Lower Waiting Hall and the staircase to the first floor, where the river front is occupied by a row of 16 committee rooms. Directly below them, the libraries of the two Houses overlook the Thames from the principal floor.

Norman Porch

The grandest entrance to the Palace of Westminster is the Sovereign's Entrance beneath the Victoria Tower. It was designed for the use of the monarch, who travels from Buckingham Palace by carriage every year for the State Opening of Parliament. The Imperial State Crown, which is worn by the sovereign for the ceremony, as well as the Cap of Maintenance and the Sword of State, which are symbols of royal authority and are borne before the monarch during the procession, also travel to the Palace by coach, accompanied by members of the Royal Household; the regalia, as they are collectively known, arrive some time before the monarch and are exhibited in the Royal Gallery until they are needed. The Sovereign's Entrance is also the formal entrance used by visiting dignitaries, as well as the starting point of public tours of the Palace.

From there, the Royal Staircase leads up to the principal floor with a broad, unbroken flight of 26 steps made of grey granite. It is lined on state occasions by sword-wielding troopers of the two regiments of the Household Cavalry, the Life Guards and the Blues and Royals; these are the only troops allowed to bear arms inside the Palace of Westminster, which officially remains a royal residence.

The staircase is followed by the Norman Porch, a square landing distinguished by its central clustered column and the intricate ceiling it supports, which is made up of four groin vaults with lierne ribs and carved bosses. The Porch was named for its proposed decorative scheme, based on Norman history. In the event, neither the planned statues of Norman kings nor the frescoes were executed, and only the stained-glass window portraying William the Conqueror hints at this theme. Queen Victoria is depicted twice in the room: as a young woman in the other stained-glass window, and near the end of her life, sitting on the throne of the House of Lords, in a copy of a 1900 painting by Jean-Joseph Benjamin-Constant which hangs on the eastern wall. The sixteen plinths intended for the statues now house busts of prime ministers who have sat in the House of Lords, such as the Earl Grey and the Marquess of Salisbury. A double door opposite the stairs leads to the Royal Gallery, and another to the right opens to the Robing Room.

Queen's Robing Room

The Queen's Robing Room lies at the southern end of the ceremonial axis of the Palace and occupies the centre of the building's south front, overlooking the Victoria Tower Gardens. As its name indicates, it is where the Sovereign prepares for the State Opening of Parliament by donning official robes and wearing the Imperial State Crown. The focus of this richly decorated room is the Chair of State used by the monarch; it sits on a dais of three steps, under a canopy adorned with the arms and floral emblems of England, Scotland and Ireland. A panel of purple velvet forms the backdrop to the chair, embroidered by the Royal School of Needlework with the royal arms, surrounded by stars and VR monograms. Edward Barry designed both the chair—the cushion and back of which are also embroidered—and the ornate marble fireplace across the room, which features gilded statuettes of Saint George and Saint Michael.

The decorative theme of the room is the legend of King Arthur, considered by many Victorians the source of their nationhood. Five frescos painted by William Dyce between 1848 and 1864 cover the walls, depicting allegorical scenes from the legend. Each scene represents a chivalric virtue; the largest, between the two doors, is entitled Admission of Sir Tristram to the Round Table and illustrates the virtue of Hospitality. Seven were originally commissioned but the remaining two paintings were not carried out due to the artist's death, and on the wallpapered panels flanking the Chair of State hang oil portraits of Queen Victoria and Prince Albert by Franz Xaver Winterhalter. Other decorations in the room are also inspired by the Arthurian legend, namely a series of 18 bas-reliefs beneath the paintings, carved in oak by Henry Hugh Armstead, and the frieze running below the ceiling, which displays the attributed coats of arms of the Knights of the Round Table. The ceiling itself is decorated with heraldic badges, as is the border of the wooden floor—which, as can be seen in the image to the right, is left exposed by the carpeting.

Prince's Chamber

The Prince's Chamber is a small anteroom between the Royal Gallery and the Lords Chamber, named after the room adjoining the Parliament Chamber in the Old Palace of Westminster. Due to its location, it is a place where members of the Lords meet to discuss business of the House. Several doors lead out of the room, to the division lobbies of the House of Lords and to a number of important offices.

The theme of the Prince's Chamber is Tudor history, and 28 oil portraits painted on panels around the room depict members of the Tudor dynasty. They are the work of Richard Burchett and his pupils, and their creation entailed extensive research, which contributed to the founding of the National Portrait Gallery in 1856. 12 bronze bas-reliefs are set into the wall below the portraits, executed by William Theed in 1855–57. Scenes included are The Field of the Cloth of Gold, The Escape of Mary, Queen of Scots and Raleigh Spreading His Cloak As a Carpet for the Queen. Above the portraits, at window level, there are compartments intended for copies of six of the ten Armada tapestries, which hung in the chamber of the House of Lords until their destruction in the 1834 fire and depicted the defeat of the Spanish Armada in 1588. The project was put on hold in 1861 (by which time only one painting had been completed), and was not revived until 2007; as of August 2010, all six paintings have been finished and are on display in the Royal Gallery. They are scheduled to be fixed in the Prince's Chamber in the following months.

The room also contains a statue of Queen Victoria, seated on a throne (itself placed on a pedestal) and holding a sceptre and a laurel crown, which show that she both governs and rules. This figure is flanked by allegorical statues of Justice and Clemency—the former with a bare sword and an inflexible expression and the latter showing sympathy and offering an olive branch. The sculptural ensemble, made of white marble and carved by John Gibson in 1855, reaches 2.44 metres (8 ft) in height; its size has long been considered out of proportion with the fittings of the Prince's Chamber, and the flanking statues ended up in storage between 1955 and 1976. However, the size and location of the group, in the archway opposite the doors to the Royal Gallery (which are removed before State Openings of Parliament to facilitate the royal procession), indicate that it was meant to be seen from a distance, and to symbolically remind the monarch of their royal duties as they would walk down the Royal Gallery on their way to deliver their speech.

Lords Chamber

The Chamber of the House of Lords is located in the southern part of the Palace of Westminster. The lavishly decorated room measures 13.7 by 24.4 metres (45 by 80 ft). The benches in the Chamber, as well as other furnishings in the Lords' side of the Palace, are coloured red. The upper part of the Chamber is decorated by stained glass windows and by six allegorical frescoes representing religion, chivalry and law.

At the south end of the Chamber are the ornate gold Canopy and Throne; although the Sovereign may theoretically occupy the Throne during any sitting, he or she attends only the State Opening of Parliament. Other members of the Royal Family who attend the State Opening use Chairs of State next to the Throne, and peers' sons are always entitled to sit on the steps of the Throne. In front of the Throne is the Woolsack, an armless red cushion stuffed with wool, representing the historical importance of the wool trade, and used by the officer presiding over the House (the Lord Speaker since 2006, but historically the Lord Chancellor or a deputy). The House's mace, which represents royal authority, is placed on the back of the Woolsack. In front of the Woolsack is the Judges' Woolsack, a larger red cushion formerly occupied during the State Opening by the Law Lords (who were members of the House of Lords), and prospectively by the Supreme Court Justices and other Judges (whether or not members), to represent the Judicial Branch of Government. The Table of the House, at which the clerks sit, is in front.

Members of the House occupy red benches on three sides of the Chamber. The benches on the Lord Speaker's right form the Spiritual Side and those to his left form the Temporal Side. The Lords Spiritual (archbishops and bishops of the established Church of England) all occupy the Spiritual Side. The Lords Temporal ( nobles) sit according to party affiliation: members of the Government party sit on the Spiritual Side, while those of the Opposition sit on the Temporal Side. Some peers, who have no party affiliation, sit on the benches in the middle of the House opposite the Woolsack; they are accordingly known as cross-benchers.

The passage of the Parliament Act 1911. Votes in both Houses of Parliament are conducted in the form of divisions.

The Lords Chamber is the site of nationally televised ceremonies, the most important of which is the State Opening of Parliament, which is held formally to open each annual parliamentary session, either after a General Election or in the autumn. At this occasion every constitutional element of the government is represented: the Crown (both literally, and figuratively in the person of the Sovereign), The Lords Spiritual and Temporal, and The Commons, (who together form the Legislature), the Judiciary (although no judges are members of either House of Parliament), and the Executive (both Government Ministers, and ceremonial military units in attendance on the Sovereign); and a large number of guests are invited to attend in the large Royal Gallery immediately outside the Chamber. The Sovereign, seated on the Throne, delivers the Speech from the Throne, outlining the Government's programme for the year and legislative agenda for the forthcoming parliamentary session. The Commons may not enter the Lords' debating floor; instead, they watch the proceedings from beyond the Bar of the House, just inside the door. A small purely formal ceremony is held to end each parliamentary session, when the Sovereign is merely represented by a group of Lords Commissioners.

Peers' Lobby

Directly north of the Lords Chamber lies the Peers' Lobby, an antechamber where Lords can informally discuss or negotiate matters during sittings of the House, as well as collect messages from the doorkeepers, who control access to the Chamber. The Lobby is a square room measuring 12 metres (39 ft) on each side and 10 metres (33 ft) in height, and one of its main features is the floor centrepiece, a radiant Tudor rose made of Derbyshire marbles and set within an octagon of engraved brass plates. The rest of the floor is paved with encaustic tiles featuring heraldic designs and Latin mottoes. The walls are faced with white stone and each is pierced by a doorway; above the arches are displayed arms representing the six royal dynasties which ruled England until Queen Victoria's reign ( Saxon, Norman, Plantagenet, Tudor, Stuart and Hanoverian), and between them there are windows stained with the arms of the early aristocratic families of England.

Of the doorways, the one to the south—which leads into the Lords Chamber—is the most magnificent, and sports much gilding and decoration, including the full royal arms. It is enclosed by the Brass Gates, a pair of elaborately pierced and studded doors together weighing 1.5 tonnes. The side doors, which feature clocks, open into corridors: to the east extends the Law Lords Corridor, which leads to the libraries, and nearby to the west lies the Moses Room, used for Grand Committees.

To the north is the vaulted Peers' Corridor, which is decorated with eight murals by Charles West Cope depicting historical scenes from the period around the English Civil War. The frescoes were executed between 1856 and 1866, and each scene was "specifically chosen to depict the struggles through which national liberties were won". Examples include Speaker Lenthall Asserting the Privileges of the Commons Against Charles I when the Attempt was Made to Seize the Five Members, representing resistance against absolute rule, and The Embarkation of the Pilgrim Fathers for New England, which illustrates the principle of freedom of worship.

Central Lobby

The Central Lobby
Saint George for England by Sir Edward Poynter and Saint Patrick for Ireland by Robert Anning Bell are two of the four mosaics decorating the Central Lobby.

Originally named "Octagon Hall" because of its shape, the Central Lobby is the heart of the Palace of Westminster. It lies directly below the Central Tower and forms a busy crossroads between the House of Lords to the south, the House of Commons to the north, St Stephen's Hall and the public entrance to the west, and the Lower Waiting Hall and the libraries to the east. Its location halfway between the two debating chambers has led constitutional theorist Erskine May to describe the Lobby as "the political centre of the British Empire", and allows a person standing under the great chandelier to see both the Royal Throne and the Speaker's Chair, provided that all the intervening doors are open. Constituents may meet their Members of Parliament here, even without an appointment, and this practice is one of the possible origins of the term lobbying. The hall is also the theatre of the Speaker's Procession, which passes from here on its way to the Commons Chamber before every sitting of the House.

The Central Lobby measures 18 metres (59 ft) across and 23 metres (75 ft) from the floor to the centre of the vaulted ceiling. The panels between the vault's ribs are covered with Venetian glass mosaic displaying floral emblems and heraldic badges, and the bosses in the intersections of the ribs are also carved into heraldic symbols. Each wall of the Lobby is contained in an arch ornamented with statues of English and Scottish monarchs; on four sides there are doorways, and the tympana above them are adorned with mosaics representing the patron saints of the United Kingdom's constituent nations: Saint George for England, Saint Andrew for Scotland, Saint David for Wales and Saint Patrick for Ireland. The other four arches are occupied by high windows, under which there are stone screens—the hall's post office, one of two in the Palace, is located behind one of these screens. In front of them stand four bigger-than-life statues of 19th-century statesmen, including one of four-time Prime Minister William Ewart Gladstone. The floor on which they stand is tiled with Minton encaustic tiles in intricate patterns and includes a passage from Psalm 127 written in Latin, which translates as follows: "Except the Lord build the House their labour is but lost that build it".

The East Corridor leads from the Central Lobby to the Lower Waiting Hall, and its six panels remained blank until 1910, when they were filled with scenes from Tudor history. They were all paid for by Liberal peers and each was the work of a different artist, but uniformity was achieved between the frescoes thanks to a common colour palette of red, black and gold and a uniform height for the depicted characters. One of the scenes is probably not historical: Plucking the Red and White Roses in the Old Temple Gardens, depicting the origin of these flowers as emblems of the Houses of Lancaster and York respectively, was taken from Shakespeare's Henry VI, Part 1.

Members' Lobby

United States President Barack Obama in the Members' Lobby during a tour of Parliament in 2011

Continuing north from the Central Lobby is the Commons' Corridor. It is of almost identical design to its southern counterpart and is decorated with scenes of 17th-century political history between the Civil War and the Revolution of 1688. They were painted by Edward Matthew Ward and include subjects like Monk Declaring for a Free Parliament and The Lords and Commons Presenting the Crown to William and Mary in the Banqueting Hall. Then, mirroring the arrangement at the Lords part of the Palace, is another antechamber, the Members' Lobby. In this room, Members of Parliament hold discussions or negotiations, and are often interviewed by accredited journalists, collectively known as " The Lobby".

The room is similar to the Peers' Lobby but plainer in design and slightly larger, forming a cube 13.7 metres (45 ft) on all sides. After the heavy damage it sustained in the 1941 bombing, it was rebuilt in a simplified style, something most evident in the floor, which is almost completely unadorned. The archway of the door leading into the Commons Chamber has been left unrepaired as a reminder of the evils of war, and is now known as the Rubble Arch or Churchill Arch. It is flanked by bronze statues of Winston Churchill and David Lloyd George, the prime ministers who led Britain through the Second and First World War respectively; a foot of each is conspicuously shiny, a result of a long tradition of MPs rubbing them for good luck on their way in before their maiden speech. The Lobby contains the busts and statues of most 20th-century prime ministers, as well as two large boards where MPs can receive letters and telephone messages, designed for the use of the House and installed in the early 1960s.

Commons Chamber

The Chamber of the House of Commons is at the northern end of the Palace of Westminster; it was opened in 1950 after the Victorian chamber had been destroyed in 1941 and re-built under the architect Giles Gilbert Scott. The Chamber measures 14 by 20.7 metres (46 by 67.9 ft) and is far more austere than the Lords Chamber; the benches, as well as other furnishings in the Commons side of the Palace, are coloured green. Members of the public are forbidden to sit on the red benches, which are reserved for members of the House of Lords. Other parliaments in Commonwealth nations, including those of India, Canada, Australia and New Zealand, have copied the colour scheme under which the Lower House is associated with green, and the Upper House with red.

At the north end of the Chamber is the Speaker's Chair, a present to Parliament from the Commonwealth of Australia. The current British Speaker's Chair is an exact copy of the Speaker's Chair given to Australia, by the House of Commons, on the celebration of Australia's Parliamentary opening. In front of the Speaker's Chair is the Table of the House, at which the clerks sit, and on which is placed the Commons' ceremonial mace. The Table was a gift from the Dominion of Canada. The dispatch boxes, which front-bench Members of Parliament (MPs) often lean on or rest notes on during Questions and speeches, are a gift from New Zealand. There are green benches on either side of the House; members of the Government party occupy benches on the Speaker's right, while those of the Opposition occupy benches on the Speaker's left. There are no cross-benches as in the House of Lords. The Chamber is relatively small, and can accommodate only 427 of the 650 Members of Parliament—during Prime Minister's Questions and in major debates MPs stand at either end of the House.

By tradition, the British Sovereign does not enter the Chamber of the House of Commons. The last monarch to do so was King Charles I, in 1642. The King sought to arrest five Members of Parliament on charges of high treason, but when he asked the Speaker, William Lenthall, if he had any knowledge of the whereabouts of these individuals, Lenthall famously replied: "May it please your Majesty, I have neither eyes to see nor tongue to speak in this place but as the House is pleased to direct me, whose servant I am here." When repairs after the World War II bombing were completed, the rebuilt chamber was opened by King George VI on 26 October 1950 who was invited to an "unofficial" tour of the new structure by Commons leaders.

The two red lines on the floor of the House of Commons are 2.5 metres (8 ft 2 in) apart, which, by apocryphal tradition, is intended to be just over two sword-lengths. It is said that the original purpose of this was to prevent disputes in the House from devolving into duels. However, there is no record of a time when Members of Parliament were allowed to bring swords into the Chamber; historically, only the Serjeant at Arms has been allowed to carry a sword, as a symbol of their role in Parliament, and there are loops of pink ribbon in the Members' cloakroom for MPs to hang up their swords before entering the Chamber. In the days that gentlemen carried swords, there were not any lines in the Chamber. Protocol dictates that MPs may not cross these lines when speaking; a Member of Parliament who violates this convention will be lambasted by opposition Members. This is—incorrectly, given the relatively recent addition of the lines—regarded as a possible origin for the expression "to toe the line".

Westminster Hall

Westminster Hall in the early 19th century

Westminster Hall, the oldest existing part of the Palace of Westminster, was erected in 1097, at which point it was the largest hall in Europe. The roof was probably originally supported by pillars, giving three aisles, but during the reign of King Richard II, this was replaced by a hammerbeam roof by the royal carpenter Hugh Herland, "the greatest creation of medieval timber architecture", which allowed the original three aisles to be replaced with a single huge open space, with a dais at the end. The new roof was commissioned in 1393. Richard's architect Henry Yevele left the original dimensions, refacing the walls, with fifteen life-size statues of kings placed in niches. The rebuilding had been begun by King Henry III in 1245, but had by Richard's time been dormant for over a century. In Westminster Hall, the favourite heraldic badge of Richard II, a white hart, chained, and in an attitude of rest, is repeated as many as eighty-three times, without any of them being an exact counterpart of another.

Westminster Hall has the largest clearspan medieval roof in England, measuring 20.7 by 73.2 metres (68 by 240 ft). Oak timbers for the roof came from royal woods in Hampshire and from parks in Hertfordshire and from The Park of Sir William Crozier of Stoke D'Abernon who supplied over 600 Oaks in Surrey, among other sources; they were assembled near Farnham, Surrey, 56 kilometres (35 mi) away. Accounts record the large number of wagons and barges which delivered the jointed timbers to Westminster for assembly.

Westminster Hall has served numerous functions. It was primarily used for judicial purposes, housing three of the most important courts in the land: the Court of King's Bench, the Court of Common Pleas and the Court of Chancery. In 1875, these courts were amalgamated into the High Court of Justice, which continued to meet in Westminster Hall until it moved to the Royal Courts of Justice in 1882. In addition to regular courts, Westminster Hall also housed important trials, including impeachment trials and the state trials of King Charles I at the end of the English Civil War, Sir William Wallace, Sir Thomas More, Cardinal John Fisher, Guy Fawkes, the Earl of Strafford, the rebel Scottish Lords of the 1715 and 1745 uprisings and Warren Hastings. The St Stephen's Porch end of the Hall displays under the stained glass windows a Great War Memorial listing on eight panels the names of Members of Parliament and their sons killed serving in the war.

George IV's coronation banquet was held in Westminster Hall in 1821.

Westminster Hall has also served ceremonial functions. From the twelfth century to the nineteenth, coronation banquets honouring new monarchs were held here. The last coronation banquet was that of King George IV, held in 1821; his successor, William IV, abandoned the idea because he deemed it too expensive. The Hall has been used for lyings-in-state during state and ceremonial funerals. Such an honour is usually reserved for the Sovereign and for their consorts; the only non-royals to receive it in the twentieth century were Frederick Sleigh Roberts, 1st Earl Roberts (1914) and Sir Winston Churchill (1965). The most recent lying-in-state was that of Queen Elizabeth The Queen Mother in 2002.

The two Houses have presented ceremonial Addresses to the Crown in Westminster Hall on important public occasions. For example, Addresses were presented at Elizabeth II's Silver Jubilee (1977), Golden Jubilee (2002) and Diamond Jubilee (2012), the 300th anniversary of the Glorious Revolution (1988), and the fiftieth anniversary of the end of the Second World War (1995).

It is considered a rare privilege for a foreign leader to be allowed to address both houses in Westminster Hall. Since the Second World War the only leaders to have done so have been French president Charles de Gaulle in 1960, South African president Nelson Mandela in 1996, Pope Benedict XVI in 2010, U.S. president Barack Obama in 2011 and Burmese opposition leader Aung San Suu Kyi in 2012. President Obama was the first ever US President to be allowed to use the Hall for an address to Parliament and Aung San Suu Kyi was the first non-head of state to be given the accolade of addressing MPs and peers in Westminster Hall.

Under reforms made in 1999, the House of Commons uses the Grand Committee Room next to Westminster Hall as an additional debating chamber. (Although it is not part of the main hall, the room is usually spoken of as such.) The seating is laid out in a U-shape, in contrast with the main Chamber, in which the benches are placed opposite each other. This pattern is meant to reflect the non-partisan nature of the debates held in Westminster Hall.

Other rooms

There are two suites of libraries on the Principal Floor, overlooking the river, for the House of Lords Library and House of Commons Library.

The Palace of Westminster also includes state apartments for the presiding officers of the two Houses. The official residence of the Speaker stands at the northern end of the Palace; the Lord Chancellor's apartments are at the southern end. Each day, the Speaker and Lord Speaker take part in formal processions from their apartments to their respective Chambers.

There are numerous bars, cafeterias and restaurants in the Palace of Westminster, with differing rules regarding who is allowed to use their facilities; many of them never close while the House is sitting. There is also a gymnasium, and even a hair salon; and a rifle range. Parliament also has a souvenirs shop, where items on sale range from House of Commons key-rings and china to House of Commons Champagne.


Concrete barriers restrict access to Old Palace Yard.

The Gentleman Usher of the Black Rod oversees security for the House of Lords, and the Serjeant at Arms does the same for the House of Commons. These officers, however, have primarily ceremonial roles outside the actual chambers of their respective Houses. Security is the responsibility of the Palace of Westminster Division of the Metropolitan Police, the police force for the Greater London area. Tradition still dictates that only the Serjeant at Arms may enter the Commons chamber armed.

With rising concern about the possibility that a lorry full of explosives could be driven into the building, a series of concrete blocks was placed in the roadway in 2003. On the river, an exclusion zone extending 70 metres (77 yd) from the bank exists, which no vessels are allowed to enter.

The Serious Organised Crime and Police Act 2005 made it illegal to hold a protest near the Palace, or anywhere else within a designated area extending up to 1 kilometre (0.6 mi) from Parliament Square, without authorisation from the Metropolitan Police. The Act also restricted the operation of loudspeakers in the designated area. These provisions were repealed by the Police Reform and Social Responsibility Act 2011, which replaced them with a total ban on tents and sleeping bags in Parliament Square, as well as a prohibition on the use of loudspeakers in the Square without permission from the relevant local authority.

Despite recent security breaches, members of the public continue to have access to the Strangers' Gallery in the House of Commons. Visitors pass through metal detectors and their possessions are scanned. Police from the Palace of Westminster Division of the Metropolitan Police, supported by some armed police from the Diplomatic Protection Group, are always on duty in and around the Palace.


A famous attempt to breach the security of the Palace of Westminster was the failed Gunpowder Plot of 1605. The plot was a conspiracy among a group of Roman Catholic gentry to re-establish Catholicism in England by assassinating the Protestant King James I and replacing him with a Catholic monarch. To this end, they placed large quantities of gunpowder beneath the House of Lords, which one of the conspirators, Guy Fawkes, would detonate during the State Opening of Parliament on 5 November 1605. If successful, the explosion would have destroyed the Palace, killing the King, his family and most of the aristocracy. However, the plot was discovered and most of the conspirators were either arrested or killed while trying to evade capture. The survivors were tried for high treason in Westminster Hall, convicted and gruesomely executed by hanging, drawing and quartering. Since then, the cellars of the Palace have been searched by the Yeomen of the Guard before every State Opening of Parliament, a traditional precaution against any similar attempts against the Sovereign.

The assassination of Prime Minister Spencer Perceval in 1812 in the lobby of the House of Commons

The previous Palace of Westminster was also the site of a prime-ministerial assassination in 1812. While in the lobby of the House of Commons, on his way to a parliamentary inquiry, Spencer Perceval was shot and killed by a Liverpool merchant adventurer, John Bellingham. Perceval remains the only British Prime Minister to have been assassinated.

The New Palace became the target of Fenian bombs on 24 January 1885, along with the Tower of London. The first bomb, a black bag containing dynamite, was discovered by a visitor on the steps towards the Chapel of St Mary Undercroft. Police Constable (PC) William Cole attempted to carry it to New Palace Yard, but the bag became so hot that Cole dropped it and it exploded. The blast opened a crater in the floor 1 metre (3 ft) in diameter, damaged the roof of the Chapel and shattered all the windows in the Hall, including the stained-glass South Window at St Stephen's Porch. Both Cole and PC Cox, a colleague who had joined him to offer assistance, were seriously injured. A second explosion followed almost immediately in the Commons Chamber, causing great damage—especially to its south end—but no injuries, as it was empty at the time. The incident resulted in the closure of Westminster Hall to visitors for several years; when visitors were re-admitted in 1889, it was under certain restrictions and never while the two Houses were sitting.

On 17 June 1974, a 9-kilogram (20 lb) bomb planted by the Provisional IRA exploded in Westminster Hall. The explosion and the resulting fire, which was fed by a ruptured gas main, injured 11 people and caused extensive damage. Five years later, a car bomb claimed the life of Airey Neave, a prominent Conservative politician, while he was driving out of the Commons car park in New Palace Yard. The attack occurred on 30 March 1979, one day after the announcement of that year's general election; both the Irish National Liberation Army and the Provisional IRA claimed responsibility for Neave's assassination, but it is now accepted that the former were responsible.

The Palace has also been the scene of numerous acts of politically motivated " direct action", which often took place in the Chamber of the House of Commons. In July 1970, a man in the Strangers' Gallery threw two canisters of tear gas into the Chamber to protest against the use of such gas in Northern Ireland; a MP and two members of the House's staff were taken to hospital and the sitting was suspended for almost two hours. In 1978, activist Yana Mintoff and another dissident threw bags of horse manure, and in June 1996 demonstrators dropped leaflets. Concern about such attacks and a possible chemical or biological attack led to the construction of a glass screen across the Strangers' Gallery in early 2004.

The new barrier does not cover the gallery in front of the Strangers' Gallery, which is reserved for ambassadors, members of the House of Lords, guests of MPs and other dignitaries, and in May 2004 protesters from Fathers 4 Justice attacked Prime Minister Tony Blair with flour bombs from this part, after obtaining admission by bidding for a place in the visitors' gallery in a charity auction. Subsequently, rules on admission to the visitors' galleries were changed, and now individuals wishing to sit in the galleries must first obtain a written pass from a Member certifying that that individual is personally known to them. In September of the same year, five protesters opposed to the proposed ban on fox hunting disrupted the proceedings of the House of Commons by running into the Chamber, the first such occurrence since King Charles I's unauthorised entry in 1642, which triggered the English Civil War.

The House of Lords has also been targeted by protesters. On 2 February 1988, the House debated the Local Government Bill's controversial Clause 28, a measure to prohibit the promotion of homosexuality in schools. Following the division, in which the clause passed, a number of lesbian demonstrators in the public gallery started chanting slogans, and three of them tied ropes to the railing and climbed down onto the floor of the Chamber. Lord Monkswell, who had provided the women with passes to attend the debate, later apologised to the House for the incident but did not criticise the protest.

Plane Stupid activists on the roof of the Palace of Westminster

Similar actions have been carried out outside the Palace of Westminster. Early in the morning of 20 March 2004, two Greenpeace members scaled the Elizabeth Tower to demonstrate against the Iraq War, raising questions about the security around such a likely target of terrorist attacks. In March 2007, another four members of Greenpeace made their way to the Palace's roof by means of a nearby crane, which was being used for repairs to Westminster Bridge. Once up, they unfurled a 15-metre (50 ft) banner protesting against the British government's plans to update the Trident nuclear weapons programme.

In February 2008, five campaigners from the Plane Stupid group gained admittance to the building as visitors and then moved up to the roof to demonstrate against the proposed expansion of Heathrow Airport; from there they hung two banners they had smuggled past security. MPs and security experts found it worrying that the protesters made it to the roof in spite of the heightened security measures, and the prosecution at the activists' trial argued that they may have received help from a House of Lords employee. In October 2009, at least forty Greenpeace activists climbed to the roof of Westminster Hall to call for the adoption of policies combating climate change. Some of them climbed down after nearly five hours, while the rest spent the night on the roof.

Rules and traditions

Eating, drinking and smoking

The Palace has accumulated many rules and traditions over the centuries. Smoking has not been allowed in the chamber of the House of Commons since the 17th century. As a result, Members may take snuff instead and the doorkeepers still keep a snuff-box for this purpose. Despite persistent media rumours, it has not been permitted to smoke anywhere inside the Palace since 2005. Members may not eat or drink in the chamber; the exception to this rule is the Chancellor of the Exchequer, who may have an alcoholic drink while delivering the Budget statement.

Dress code

The introduction of a new Member of Parliament, 1858. Wearing hats in the House of Commons has not always been treated in the same way.

Hats must not be worn (although they formerly were when a point of order was being raised), and Members may not wear military decorations or insignia. Members are not allowed to have their hands in their pockets – Andrew Robathan was heckled by opposing MPs for doing this on 19 December 1994.

Other traditions

No animals may enter the Palace of Westminster, with the exception of guide dogs for the blind, sniffer dogs, police horses, and horses from the Royal stables.

Speeches may not be read out during debate in the House of Commons, although notes may be referred to. Similarly, the reading of newspapers is not allowed. Visual aids are discouraged in the chamber. Applause is also not normally allowed in the Commons. Some notable exceptions to this were when Robin Cook gave his resignation speech in 2003, when Prime Minister Tony Blair appeared for the last time at Prime Minister's Questions and when Speaker Michael Martin gave his leaving speech on 17 June 2009. The status of the Palace as a royal palace raises legal questions – according to Halsbury's Laws of England, it is not possible to arrest a person within the "verges" of the Palace (the Palace itself and its immediate surroundings). However, according to a memorandum by the Clerk of the House of Commons, there is no prohibition on arrest within the Palace and such arrests have been effected in the past.

Culture and tourism

Claude Monet's Houses of Parliament series

The Houses of Parliament, sunset (1903), National Gallery of Art, Washington, D.C.
London, Houses of Parliament. The Sun Shining through the Fog (1904), Musée d'Orsay, Paris
During three trips to London between 1899 and 1901, Impressionist painter Claude Monet worked on a series of canvasses that depicted the Palace of Westminster under various lighting conditions; the building was often shrouded in the smog prevalent in the city in Victorian times. The paintings share the same vantage point—a terrace at St Thomas's Hospital, across the river from the Palace—and many of the works were finished in Monet's studio in France over the following years.

The exterior of the Palace of Westminster—especially the Big Ben—is recognised worldwide, and is one of the most visited tourist attractions in London. The United Nations Educational, Scientific and Cultural Organization (UNESCO) classifies the Palace of Westminster, along with neighbouring Westminster Abbey and St Margaret's, as a World Heritage Site. It is also a Grade I listed building.

Although there is no casual access to the interior of the Palace, there are several ways to gain admittance. UK residents may obtain tickets from an MP for a place in the viewing gallery of the House of Commons, or from a Lord for a seat in the gallery of the House of Lords. It is also possible for both UK residents and overseas visitors to queue for admission on the day, but capacity is limited and there is no guarantee of admission. Either House may exclude "strangers" if it desires to sit in private. Members of the public can also queue for a seat in a committee session, where admission is free and places cannot be booked, or they may visit the Parliamentary Archives for research purposes. Proof of identity is necessary in the latter case, but there is no requirement to contact a Parliamentarian in advance.

Free guided tours of the Palace are held throughout the parliamentary session for UK residents, who can apply through their MP or a member of the House of Lords. The tours last about 75 minutes and include the state rooms, the chambers of the two Houses and Westminster Hall. Paid-for tours (led by London Blue Badge Tourist Guides) are available to both UK and overseas visitors during the summer recess. UK residents may also tour the Elizabeth Tower, by applying through their local Member of Parliament; overseas visitors and small children are not allowed.

Architectural historian Dan Cruickshank selected the Palace as one of his five choices for the 2006 BBC television documentary series Britain's Best Buildings.

The nearest London Underground station is Westminster, on the District, Circle and Jubilee Lines.

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