Take a stroll on the recently renovated Chicago Riverwalk. There are a number of great places to stop along the way to have a drink, get a snack, or just people watch.
We also strongly recommend taking one of the Architecture Boat Tours. It is a a great way to take in the scenery and learn about Chicago's incredible architecture.
Visit one of Chicago's amazing museums. The Field Museum, Museum of Science and Industry, Art Institute of Chicago, Shedd Aquarium and Adler Planetarium are all great ways to spend half a day (or more).
Go for a walk along the lakefront or consider renting a Divvy bike (Chicago's bikeshare program) and taking the trail to Navy Pier.
Technically called the Willis Tower now, but real Chicagoans know. This is a great way to see Chicago.
Navy Pier offers a diverse and eclectic range of activities and experiences. Ride the ferris wheel or take in the views of the water.