It seems almost de rigeur for great Universities to have art museums on campus. The Smart Museum may be small, but it takes advantage of it's lack of size and space by dramatically reconfiguring the entire gallery to suit the exhibits being shown. The emphasis at the Smart Museum is on modern art, but is not linked to any particular region or era. It may be best to check their upcoming schedule of exhibits and go to one that sounds interesting. Free, on the U of C campus.