Glamis Castle, Scotland

This castle was first built in the 14th century, and it's where the Queen
Mother—the late mother to Queen Elizabeth II—grew up. It's also said to be populated by a bevy of ghosts including the Grey Lady, or the Lady of Glamis, otherwise known as Lady Janet Douglas. Accused of murdering her husband by poisoning him and of using witchcraft to take down King James V of Scotland, the Grey Lady was burned at the stake in 1537 in Edinburgh. Her ghost is said to run up the stairs in the clock tower, leaving a trail of ash in her wake. A woman with no tongue has been seen roaming the park around the castle, and the ghost of an 18th-century boy servant, who had been terribly mistreated, is said to haunt a seat near the door of the queen's bedroom. The most famous ghost is Earl Beardie, or the Earl of Crawford. This noble visited the castle in the 15th century, and one night, he got drunk and demanded that someone play cards with him. If no one would, the Earl declared, he would play the devil himself. A mysterious hooded man dressed in black showed up at Glamis and offered to play. By the next morning, the Earl had vanished, and visitors to the castle have reported hearing swearing, loud voices, dice, and clinking glasses.