UNESCO
Tower of London
William the Conqueror's White Tower: palace, prison and home of the Crown Jewels.
Europe
Norman keeps, Moorish palaces, walled medieval cities and a king's fairy-tale dream.
5 forts
UNESCO
Tower of London
William the Conqueror's White Tower: palace, prison and home of the Crown Jewels.
UNESCO
Cité de Carcassonne
A whole medieval town inside a double ring of walls and 52 towers.
UNESCO
Edinburgh Castle
A royal castle on an old volcano, keeper of Scotland's crown.
UNESCO
Alhambra
The red fortress-palace of the last Muslim kingdom of Spain.
UNESCO
Neuschwanstein Castle
A dreamy king's castle in the Bavarian Alps, and the model for a famous fairy-tale castle.