The Palace of Westminster

     The Palace of Westminster features three main towers. Of these, the largest and tallest is the 98.5-metere (323 ft) Victoria Tower, which occupies the south-western corner of the Palace. Called "King's Tower" at the time, in honor 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 kilometers (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.

     At the north end of the Palace rises the most famous of the towers, the Clock Tower, commonly known as Big Ben. At 96 meters (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 meters (23 ft) in diameter, which are made of milk glass and are lit from behind at night; the hour hand is 2.7 meters (8 ft 10 in) long and the minute hand 4.3 meters (14 ft).

     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 tones. In the lantern at the top of the Clock 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 shortest of the Palace's three principal towers (at 91 meters (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. 

     2.3.Grounds

     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. 

     3. Interior

     The Palace of Westminster contains over 1,100 rooms, 100 staircases and 4.8 kilometers (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. 

     3.1. Layout

     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. 

     3.2. 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. 

     3.3. 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 Haver Winter halter. 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. 

     3.4. Royal Gallery

     Immediately north of the Robing Room is the Royal Gallery. At 33.5 by 13.7 meters (110 by 45 ft), it is one of the largest rooms in the Palace. Its main purpose is to serve as the stage of the royal procession at State Openings of Parliament, which the audience watch from temporary tiered seating on both sides of the route. It has also been used on occasion by visiting statesmen from abroad when addressing both Houses of Parliament, as well as for receptions in honor of foreign dignitaries, and more regularly for the Lord Chancellor's Breakfast; in the past it was the theatre of several trials of peers by the House of Lords. Documents from the Parliamentary Archives are on display in the Royal Gallery (including a facsimile of Charles I's death warrant), and the tables and seating offer a workspace for members of the Lords that is conveniently close to their debating chamber.

     The decorative scheme of the Royal Gallery was meant to display important moments in British military history, and the walls are decorated by two large paintings by Daniel Maclise, each measuring 13.7 by 3.7 meters (45 by 12 ft): The Death of Nelson (depicting Lord Nelson's demise at the Battle of Trafalgar in 1805) and The Meeting of Wellington and Blücher (showing the Duke of Wellington meeting Gebhard Leberecht von Blücher at the Battle of Waterloo in 1815). The murals deteriorated rapidly after their completion due to a range of factors, most importantly atmospheric pollution, and today they are almost monochrome. The rest of the planned frescos were cancelled, and the walls are filled with portraits of kings and queens from George I onwards. Another decorative element with military undertones are the eight statues of gilded Caen stone that flank the three doorways and the bay window of the Gallery, sculpted by John Bernie Philip. Each depicts a monarch during whose reign a key battle or war took place. The paneled ceiling, 13.7 meters (45 ft) above the floor, features Tudor roses and lions, and the stained-glass windows show the coats of arms of the Kings of England and Scotland. 

     3.5. 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 scepter 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 meters (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.

     3.6. 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 meters (45 by 80 ft). The benches in the Chamber, as well as other furnishings in the Lords' side of the Palace, are colored 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, a backless and 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 from 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 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 most judges are not 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 programmer 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. 

     3.7. 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 meters (39 ft) on each side and 10 meters (33 ft) in height, and one of its main features is the floor centerpiece, 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.