One of the most visited aquariums in the United States! Tons of exhibits and $40 for general admin.
Free! Yay! Founded in 1968 and 4th oldest zoo in North America. Good mix of indoor and outdoor exhibits. Parking is not free, so keep that in mind.
By far one of the coolest museums... according to Matt. Tons of interactive exhibits and can easily spend hours there.
Gorgeous! Best way to see the city. Make sure to reserve your seats ahead of time.
Second tallest building in the United States. Glass walkout over side of building.
If art is your thing, enjoy this massive museum with sculptures and paintings.
Includes Field museum and Aquarium; then your choice of three more attractions including: Willis Tower, Art Institute, Museum of Science and Industry.... and a few others. Best bang for your buck if you want to see it all!
Chicago is a big place! There are so many things to do and places to see! Check here for some more ideas!