related to the war.  Imperial War Museum contains more than 10.700.000 items of war. Today it's a very famous museum since it attracts almost 1.000.000 visitors ! This monument is classified in Grade two. The Imperial War Museum is spread  over five sites. The site of the Imperial War Museum London is very free and the places very diverse. It has five sites : Imperial War Museum, HMS belfast, Churchill Museum and Cabinet War Rooms, Imperial War Museum Duxford and Imperial war Museum North. he has had six leaders !  On can discover the stories  of those who had lived, fought and died during the world war.

Imperial War Museum London is Beautiful.

The museum it’s in London.

The Cabinet War Rooms  was built in 1938 and became operational in August 1939.

It was an underground bunker for Britain’s leaders to plot the allied route to victory during the Second World War.

It remained in operation until August 1945 after the surrender of Japan.

After the war, the historic value of the Cabinet War Rooms was recognised.

Their preservation became the responsibility of the Ministry of Works and later the Department for the Environment.

During this periode only a limited number of public were able to visit the Museum.

For this reason it has moved to the Imperial World Museum administration, as one of the five branche of this Museum.

The Cabinet War Rooms has been opening as museum since April 1984.

The Cabinet War Rooms is located in Westminster area. 

It is near the 10 Downing Street (the office of the Prime Minister of Great Britain) between Whitehall and Horse Guards Road.
Rémi Baudry 3éme D

It has been re-opened since 1997.

Trafalgar Square is London's most famous and largest square. This place considered the heart of the city of London is named after the famous battle of Trafalgar opposing in 1805 the Franco-Spanish troops of Napoleon to the British army led by Admiral Nelson. 

It is one of London's most famous landmarks, easily recognizable thanks to Nelson's Column. On Trafalgar Square there is a 46-meter-high column, which makes the square visible from a distance: it was built in 1842, in honor of Admiral Horatio Nelson. He won the Battle of Trafalgar by dying in battle. Legend has it that the statue was so oriented that Admiral Nelson could see his fleet moored at Plymouth (including his flagship HMS Victory). 

In addition to being a monument, Trafalgar Square is an important place for Londoners. Many social, political, sports, cultural and commercial events take place in Trafalgar Square.

Dowing street was a street of london. It was 'gs next to the parlement in the central london. 

the Prime Minister and the chancelier of the exchequer have left in this street. This street  had the nazeame of a baron georege doing, this maner was a soldiers and a diplomat have served olivier se Prime Minister was 10 Downing Street.  

The Tower of London, officially Her Majesty's Royal Palace and Fortress of the Tower of London, is a historic castle located on the north bank of the River Thames in central London. It lies within the London Borough of Tower Hamlets, separated from the eastern edge of the square mile of the City of London by the open space known as Tower Hill. It was founded towards the end of 1066 as part of the Norman Conquest of England. The White Tower, which gives the entire castle its name, was built by William the Conqueror in 1078 and was a resented symbol of oppression, inflicted upon London by the new ruling elite. The castle was used as a prison from 1100 (Ranulf Flambard) until 1952 (Kray twins),^[3] although that was not its primary purpose. A grand palace early in its history, it served as a royal residence. As a whole, the Tower is a complex of several buildings set within two concentric rings of defensive walls and a moat. There were several phases of expansion, mainly under Kings Richard the Lionheart, Henry III, and Edward I in the 12th and 13th centuries. The general layout established by the late 13th century remains despite later activity on the site. 

The Tower of London has played a prominent role in English history. It was besieged several times, and controlling it has been important to controlling the country. The Tower has served variously as an armoury, a treasury, a menagerie, the home of the Royal Mint, a public record office, and the home of the Crown Jewels of England. From the early 14th century until the reign of Charles II, a procession would be led from the Tower to Westminster Abbey on the coronation of a monarch. In the absence of the monarch, the Constable of the Tower is in charge of the castle. This was a powerful and trusted position in the medieval period. In the late 15th century, the castle was the prison of the Princes in the Tower. Under the Tudors, the Tower became used less as a royal residence, and despite attempts to refortify and repair the castle, its defences lagged behind developments to deal with artillery. 

The peak period of the castle's use as a prison was the 16th and 17th centuries, when many figures who had fallen into disgrace, such as Elizabeth I before she became queen, Sir Walter Raleigh, and Elizabeth Throckmorton, were held within its walls. This use has led to the phrase "sent to the Tower". Despite its enduring reputation as a place of torture and death, popularised by 16th-century religious propagandists and 19th-century writers, only seven people were executed within the Tower before the World Wars of the 20th century. Executions were more commonly held on the notorious Tower Hill to the north of the castle, with 112 occurring there over a 400-year period. In the latter half of the 19th century, institutions such as the Royal Mint moved out of the castle to other locations, leaving many buildings empty. Anthony Salvin and John Taylor took the opportunity to restore the Tower to what was felt to be its medieval appearance, clearing out many of the vacant post-medieval structures. In the First and Second World Wars, the Tower was again used as a prison and witnessed the executions of 12 men for espionage. After the Second World War, damage caused during the Blitz was repaired, and the castle reopened to the public. Today, the Tower of London is one of the country's most popular tourist attractions. Under the ceremonial charge of the Constable of the Tower, it is cared for by the charity Historic Royal Palaces and is protected as a World Heritage Site.  The Tower was orientated with its strongest and most impressive defences overlooking Saxon London, which archaeologist Alan Vince suggests was deliberate.^[4] It would have visually dominated the surrounding area and stood out to traffic on the River Thames.^[5] The castle is made up of three "wards", or enclosures. The innermost ward contains the White Tower and is the earliest phase of the castle. Encircling it to the north, east, and west is the inner ward, built during the reign of Richard the Lionheart (1189–1199). Finally, there is the outer ward which encompasses the castle and was built under Edward I. Although there were several phases of expansion after William the Conqueror founded the Tower of London, the general layout has remained the same since Edward I completed his rebuild in 1285. The castle encloses an area of almost 12 acres (4.9 hectares) with a further 6 acres (2.4 ha) around the Tower of London constituting the Tower Liberties – land under the direct influence of the castle and cleared for military reasons.^[6] The precursor of the Liberties was laid out in the 13th century when Henry III ordered that a strip of land adjacent to the castle be kept clear.^[7] Despite popular fiction, the Tower of London never had a permanent torture chamber, although the basement of the White Tower housed a rack in later periods.^[8] Tower Wharf was built on the bank of the Thames under Edward I and was expanded to its current size during the reign of Richard II (1377–1399).^[9]  The White Tower is a keep (also known as a donjon), which was often the strongest structure in a medieval castle, and contained lodgings suitable for the lord – in this case the king or his representative.^[10] According to military historian Allen Brown, "The great tower [White Tower] was also, by virtue of its strength, majesty and lordly accommodation, the donjon par excellence".^[11] As one of the largest keeps in the Christian world,^[12] the White Tower has been described as "the most complete eleventh-century palace in Europe".^[13]  

The White Tower, not including its projecting corner towers, measures 36 by 32 metres (118 by 105 ft) at the base, and is 27 m (90 ft) high at the southern battlements. The structure was originally three storeys high, comprising a basement floor, an entrance level, and an upper floor. The entrance, as is usual in Norman keeps, was above ground, in this case on the south face, and accessed via a wooden staircase which could be removed in the event of an attack. It was probably during Henry II's reign (1154–1189) that a forebuilding was added to the south side of the tower to provide extra defences to the entrance, but it has not survived. Each floor was divided into three chambers, the largest in the west, a smaller room in the north-east, and the chapel taking up the entrance and upper floors of the south-east.^[14] At the western corners of the building are square towers, while to the north-east a round tower houses a spiral staircase. At the south-east corner there is a larger semi-circular projection which accommodates the apse of the chapel. As the building was intended to be a comfortable residence as well as a stronghold, latrines were built into the walls, and four fireplaces provided warmth.^[13] 

The main building material is Kentish rag-stone, although some local mudstone was also used. Caen stone was imported from northern France to provide details in the Tower's facing, although little of the original material survives as it was replaced with Portland stone in the 17th and 18th centuries. As most of the Tower's windows were enlarged in the 18th century, only two original – albeit restored – examples remain, in the south wall at the gallery level.^[15] 

The tower was terraced into the side of a mound, so the northern side of the basement is partially below ground level.^[16] As was typical of most keeps,^[17] the bottom floor was an undercroft used for storage. One of the rooms contained a well. Although the layout has remained the same since the tower's construction, the interior of the basement dates mostly from the 18th century when the floor was lowered and the pre-existing timber vaults were replaced with brick counterparts.^[16] The basement is lit through small slits.^[13]  

The entrance floor was probably intended for the use of the Constable of the Tower, Lieutenant of the Tower of London and other important officials. The south entrance was blocked during the 17th century, and not reopened until 1973. Those heading to the upper floor had to pass through a smaller chamber to the east, also connected to the entrance floor. The crypt of St John's Chapel occupied the south-east corner and was accessible only from the eastern chamber. There is a recess in the north wall of the crypt; according to Geoffrey Parnell, Keeper of the Tower History at the Royal Armouries, "the windowless form and restricted access, suggest that it was designed as a strong-room for safekeeping of royal treasures and important documents".^[16] 

The upper floor contained a grand hall in the west and residential chamber in the east – both originally open to the roof and surrounded by a gallery built into the wall – and St John's Chapel in the south-east. The top floor was added in the 15th century, along with the present roof.^[14][18] St John's Chapel was not part of the White Tower's original design, as the apsidal projection was built after the basement walls.^[16] Due to changes in function and design since the tower's construction, except for the chapel little is left of the original interior.^[19] The chapel's current bare and unadorned appearance is reminiscent of how it would have been in the Norman period. In the 13th century, during Henry III's reign, the chapel was decorated with such ornamentation as a gold-painted cross, and stained glass windows that depicted the Virgin Mary and the Holy Trinity.^[20]  The innermost ward encloses an area immediately south of the White Tower, stretching to what was once the edge of the River Thames. As was the case at other castles, such as the 11th-century Hen Domen, the innermost ward was probably filled with timber buildings from the Tower's foundation. Exactly when the royal lodgings began to encroach from the White Tower into the innermost ward is uncertain, although it had happened by the 1170s.^[15] The lodgings were renovated and elaborated during the 1220s and 1230s, becoming comparable with other palatial residences such as Windsor Castle.^[21] Construction of Wakefield and Lanthorn Towers – located at the corners of the innermost ward's wall along the river – began around 1220.^{[22][nb 1]} They probably served as private residences for the queen and king respectively. The earliest evidence for how the royal chambers were decorated comes from Henry III's reign: the queen's chamber was whitewashed, and painted with flowers and imitation stonework. A great hall existed in the south of the ward, between the two towers.^[23] It was similar to, although slightly smaller than, that also built by Henry III at Winchester Castle.^[24] Near Wakefield Tower was a postern gate which allowed private access to the king's apartments. The innermost ward was originally surrounded by a protective ditch, which had been filled in by the 1220s. Around this time, a kitchen was built in the ward.^[25] Between 1666 and 1676, the innermost ward was transformed and the palace buildings removed.^[26] The area around the White Tower was cleared so that anyone approaching would have to cross open ground. The Jewel House was demolished, and the Crown Jewels moved to Martin Tower.^[27] 

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