Eiffel Tower: Did you mean...?

The Tower of London is a castle located in London alongside the River Thames which was first built by William the Conqueror from c. 1077 and significantly added to over the centuries. Often referred to in England as simply 'the...

The keep, located within a courtyard and surrounded by a curtain wall, was the heart of a medieval castle. The hall keep was a low building while the tower keep or donjon could have three or more floors...

The Kremlin is a fortified complex located in the centre of Moscow, Russia, which is made up of towers, high walls, palaces, and cathedrals. Construction of the Kremlin began as early as the 12th century. As one of Russia's most famous...

Alure (Wall Walk) The walkway along the higher and interior part of a wall which often gives access to the higher floors of towers within the wall. Typically protected by battlements. Apse A semicircular...

The Tower of the Winds, also known as the Clock of Andronicus Cyrrhestes, is a timekeeping tower on the eastern side of the Roman agora of Athens. Built in the 2nd century BCE, it once had nine sundials and contained a large...

The White Tower of the Tower of London castle, first built c. 1077-1110 CE by William the Conqueror.

St. Thomas' Tower and the Traitor's Gate as seen from the Thames. St. Thomas' Tower was added to the Tower of London by Edward I (r. 1272-1307 CE), its construction lasted from 1275 - 1279.

Colonel Thomas Blood, a known conspirator, made an infamous but unsuccessful attempt to steal the British Crown Jewels from the Tower of London in 1671. Disguised as a clergyman, Blood and his gang swiped...

This is a picture of the Black Tower (Italian: Torre Nero) in the foreground and White Tower (Italian: Torre Bianca) in the background at the medieval fortress of Castelgrande in Bellinzona, Switzerland.

Chain Tower and Saint Nicholas Tower, La Rochelle, France.