All aboard the horrible omnibus for a creepy ride around the dark side of london edinburgh or york the tours use a classic routemaster bus which has been redesigned to give passengers their first 39fright bus39 service on board actors and technical trickery combine to create the scariest tour around your conductor provides the commentary for this sinister sightseeing show revealing haunted places as well as unmarked burial grounds this certainly isn39t for the faint hearted the