Tower of London built
1066 CE.
Shown on the map at 51.508°, -0.076°.
The Tower of London, officially His Majesty's Royal Palace and Fortress of the Tower of London, is a historic citadel and castle on the north bank of the River Thames in London, England. It lies within the London Borough of Tower Hamlets, which is 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 toward the end of 1066 as part of the Norman Conquest. The White Tower, which gives the castle its name, was built by William the Conqueror in 1078 and was initially a resented symbol of oppression. A grand palace early in its history, it served as a royal residence. 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 I, Henry III, and Edward I in the 12th and 13th centuries. The Tower of London was besieged several times, and controlling it has been important to controlling the country. The Tower has served 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.
Text from the Wikipedia article Tower of London, licensed CC BY-SA 4.0.