The Art Institute of Chicago, Chicago, Visitor Guide & Things to Do Nearby

The Art Institute of Chicago is one of the oldest and largest art museums in the United States, and it sits right in the middle of the city, flanking the south end of Millennium Park on Michigan Avenue.

The museum was founded in 1879, just eight years after the Great Chicago Fire, and moved into its current Beaux-Arts building in 1893, constructed for the World's Columbian Exposition. The building itself, with its iconic bronze lion statues guarding the entrance, has become one of Chicago's most photographed landmarks.

Inside, the collection spans 5,000 years and includes more than 300,000 works. Some of the most famous pieces in Western art live here: Georges Seurat's "A Sunday on La Grande Jatte," Grant Wood's "American Gothic," and Edward Hopper's "Nighthawks." The Impressionist gallery is one of the finest outside of Paris.

One lesser-known fact: the entire building straddles active railroad tracks. If you're standing in certain galleries, trains are passing directly beneath your feet.

Picasso's "The Old Guitarist" has another secret. X-ray analysis revealed three hidden figures beneath the visible painting: a woman, a child, and a cow, painted over when Picasso reused the canvas during his Blue Period.

If you're on a Questo quest through Chicago's cultural mile, the Art Institute is a stop where you could spend five minutes or five hours and still feel like you missed something.