Tower of London

Founded in 1066 as part of the Norman Conquest of England, the Tower of London has seen plenty of ups and downs in the years since. It has fulfilled a number of roles (including a stint as a zoo, of all things), but it is perhaps best known for the more gruesome elements of its history. The Tower acted as a prison for many years, and a host of notable Brits spent time in its dank cells, among them Elizabeth ! and Sir Walter Raleigh, and is famous for being a place of torture, death and despair. Sounds like the perfect tourist attraction to us.