This one became fairly well known after it was released in December of 2003. Hampton Court, near London, was one of Henry VIII's favorite hangouts (it's because of him that Anne Boleyn is now a headless ghost roaming the Tower of London). A fire door inside the castle kept being opened when no one was supposed to be around. Guards checked the security cameras' videotape... and spotted this figure in period costume walking through the door. Castle personnel swear they don't know who did this, noting that they don't even have a costume that looks like this. 'Course this could be some prankster at work, but I felt this was yet worthy of including in my top ten list... until we ever find out otherwise. It might turn out to have just been some tourist in an overcoat.