The Astronomer's Treasure [Outdoor]Mystery City - PragueEscape roomOther Surprisingly nice outdoor escape room, it is not hard but it gives you a few gadgets and if you don't know Prague it will guide you trough some really nice places in the Old Town which is a plus. And with the exception of Old Town Square all the other places and the riddles won't force you into a large tourist crowds so it is actually very nice walk.