A fortress of kings and battles since the 12th century, Stirling Castle is said to be haunted by a Highland ghost in full tartan, often mistaken for a tour guide. Visitors also report a phantom lady in green, believed to have been Mary Queen of Scots’ servant, and voices echoing from the Great Hall. Paranormal groups record footsteps on the ramparts and sudden drops in temperature near the kitchens where plague victims once died.