Her Majesty's Royal Palace and Fortress, more commonly known as the Tower of London (and historically as The Tower), is a historic castle and scheduled monument incentral London, England, on the north bank of the River Thames. It lies within the London Borough of Tower Hamlets and is separated from the eastern edge of the City of London by the open space known as Tower Hill. It is the oldest building used by the British government.
The Tower of London is often identified with the White Tower, the original stark square fortress built by William the Conqueror in 1078. However, the tower as a whole is a complex of several buildings set within two concentric rings of defensive walls and moat.
