Of all the sights in London, only one place can claim to be as  historically significant as it is significantly haunted . Built in  1078  by the Norman King,  William the Conqueror , the  Tower of London  has served as a  royal palace, armory, treasury, zoo  and most famously, a  prison  where some of the most famous characters in English history have been imprisoned, tortured and executed. Today, the fortress is one of London's most famous tourists spots, as it also  houses the Crown Jewels  of the UK. * After getting of the  Tower Hill Tube Station , expect to take a 15 minute pleasant stroll towards the main entrance of the Tower.