Chill factor 💀💀💀💀💀
In the heart of old London lurks this forbidding grey stone building, which has been the unhappy home of some of this city's most famous and notorious wrongdoers. So it should come as no surprise that some of them are prone to reemerging from the grave as evening's darkness falls. This castle was first used as a prison in 1100, and in the following centuries it housed condemned souls including Henry VIII's wife Anne Boleyn, whose ghost is said to stalk the grounds, clutching her severed head. It was decommissioned in 1952, after the departure of its final prisoners, vicious east London gangsters Kray twins. But even though the Tower's now a busy tourist attraction, plenty of the old creepy atmosphere still lingers, especially on grey winter days where its shaded depths seem sapped of colour and hope. It boasts 13 ghosts in all, from the genuinely chilling (listen out for the screams of Guy Fawkes, tortured on the rack here) to the gently quirky (a ghostly bear has been spotted, remnant of the Tower's days housing the royal menagerie). Turn up at twilight, and prepare to have your blood thoroughly curdled.