Top of the Sears Tower
Go for a ride on the Ferris Wheel at Navy Pier
Drive up and down Lake Shore Drive
The Art Museum is phenomenal
The Field museum is currently hosting the largest collection of Cleopatra artifacts ever assembled and has Sue the TRex fossil
There's a dolphin show at the Shedd Aquarium and it's a pretty nice Aquarium.
That is more than enough for two days
If you get a chance ride the Elevated because it's fun although it can be smelly
