The Tower of London is old, very old. The central White Tower was built by William the Conqueror after his invasion of England in 1066. Since 1485, the iconic red and black-uniformed Beefeaters have been guarding the Tower.
Also crucial to security are the ravens. Superstition has it that if the ravens leave, the Monarchy will fall. Consequently at least six pampered ravens are kept in residence at all times.
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