7 Formidable Facts About the Tower of London

(via Mental Floss) The nearly 1000-year-old Tower of London inspires many reactions, among them awe, horror, and intrigue. William the Conqueror built the White Tower in 1066 on the River Thames as a symbol of Norman power and dominance. Over the centuries, the structure expanded into 21 towers. The UNESCO World Heritage Site is a landmark in London that millions come to see every year. Here are seven facts you may not know about the Tower of London.