17. Chicago Cultural Center
Location: 78 East Washington St.
Chicago's original public library, completed in 1897, is a monument to the neo-classical architecture of the 1893 World's Fair. Inside you'll find sumptuous marble, mosaics, brass and (at 38 feet) the largest Tiffany stained-glass dome in the world. Aside from these visual marvels, you'll also find exhibits, lectures, music, and theater.
Currently on exhibition are a series of hand-painted movie posters from Ghana. The weird art covers American, Bollywood, and other films, but with strange twists, as if they've been imported from Bizarro World. You've never seen Godzilla look like this (not without the help of serious hallucinogens, and maybe a severely Christian upbringing).