Tower of London London, United Kingdom

The Tower of London is mainly perceived as a medieval place of imprisonment and execution. Nine hundred years of history are embraced within its thick, turreted walls. Even though the Tower's violent years are long gone, an aura of death and medieval torture remains. The main attractions for most visitors are the breathtaking Crown Jewels and the chance to see the legendary ravens who live within the walls. Folklore has it that if they ever leave, Britain will again fall to foreign invasion. Interestingly enough, orders have been received to clip their wings!