The John Hancock Center, a 100-story skyscaper located on Michigan Avenue, is one of the world's 10 tallest buildings. The observation deck on the 94th floor is open 7 days a week from 9a.m.- midnight. It offers excellent views of the Chicago skyline and Lake Michigan. On a clear day, you can see four different states!     Shedd Aquarium Field Museum Michigan Avenue Chicago River Daley Center MSI Chicago