The Cathedral of Learning at the University of Pittsburgh if my absolute favorite tourist destinations in one of my favorite US cities, Pittsburgh. Each room decorated in the traditional style of a different country. My favorites are the Austria room, the Africa room (I don't know why they have a room for like almost every European country and then just one for the whole continent of Africa, but that's something for another time I guess), and this caged-off one that I can't remember the theme of (oops). Also, the lobby of the building looks like Hogwarts, really awesome! The area around it is nice for walking too. Best yet, it's free!!