The second-largest art museum in the country, the Art Institute houses a treasure trove from around the globe. The collection of impressionist and postimpressionist paintings is second only to those in France, and the number of surrealist works is tremendous.
Wander the endless marble and glass corridors, and rooms stuffed with Japanese prints, Grecian urns, suits of armor, Grant Wood's American Gothic, Edward Hopper's Nighthawks and Georges Seurat's A Sunday Afternoon on the Island of La Grande Jatte. The Modern Wing dazzles with Picassos and Mirós.
The main entrance is on Michigan Ave, but you can also enter via the dazzling Modern Wing on Monroe Street. Ask at the front desk about free talks and tours once you're inside. Note that the 3rd-floor contemporary sculpture terrace is always free. It has great city views and connects to Millennium Park via the mod, pedestrian-only Nichols Bridgeway.