A church that looks like a spaceship from a retro sci-fi; Dracula's staircase; two sections of the Berlin Wall; Portuguese poems on the wall of a metro station; a semi-abandoned airport terminal; a cellar full of pinball machines; ancient Roman dogs' paws in a reception desk; a church that was elevated by a metre; one of the world's largest wine barrels; a horse's shiny balls; an enormous hour glass; a cemetery for railway relics; and wall art hiding a criticism of communist Hungary. These are just a few of the secrets revealed in Secret Budapest.