World-famous Greyfriars Graveyard awaits for you to discover its relation to Harry Potter, Greyfriars Bobby, unique historical characters and the infamous Covenanters' Prison. Then, onto probably the scariest place in the world " our 1700s underground vaults!! Once part of the Old Towns underground city which was frequented by destitutes, prostitutes, criminals, witches and a Hellfire Club. To this day it is possessed by something evil that refuses to be exorcised. Not suitable for under 16s or those of a nervous disposition. Be afraid, be very afraid.