Edinburgh Castle in Scotland
The very castle that inspired the Hogwarts School of Witchcraft and Wizardry in the Harry Potter series is also said to be one of the most haunted places in Scotland. Hundreds of French prisoners were locked up and tortured in the castle's dungeon during the Seven Years War, where paranormal activity supposedly occurs today. A woman was also burned at the stake during the 16th century for false accusations of witchcraft. Visitors have said to have experienced a burning sensation on their arms, inexplicable noises, and ghostly sightings.