This is a super-cool attraction, if you like unique, one-of-a-kind, super-cool, I-can't-believe-they-thought-to-do-this attractions! 2nd tallest structure on a university campus (Moscow has the top billing). On the first and third floors, there are 30 Nationality Rooms (28 of which are used for classrooms), designed by members of the Pittsburgh community in the styles of different nations and ethnic groups. Get the key from the gift shop to open doors on the 1st floor. I think every classroom on the 3rd floor is open.