Edinburgh Castle shared by @travelleisure says: ""This 12th-century fortress has seen a lot of action over the years. Many different eerie experiences have been reported, including unexplained music echoing through the halls. Many believe it comes from the ghost of a piper who died in the castle while investigating a series of tunnels that had been discovered — they were later resealed, but his tunes can still be heard on quiet nights. A ghostly drummer has also been spotted along the battlements and was known to appear prior to an attack."" on Postcard