Tower of London Castle in London, England. Tower of London Castle created by William the Great of England in 1078. Romanesque architecture use as a palace and fortress to protect London. A canal was built around the castle to protect the inner and outer walls. Currently used to store the Crown and Diamonds of the British Royal Family. It is a place of old and colorful. Horrible and horrible It was once a prison and a slaughterhouse. The Tower Bridge is another symbol of London. Currently a museum. Which is a group of buildings and towers behind.