What to do in chicago in 5 hours?

Travel Info
I will be reaching O'Hare airport at 12:30 on monday and my flight to India is at 7:00 pm the same day. I want to take spend 5 hours in Chicago visiting places of interest or taking a tour.

Do let me know if you have any information.

Travel Tips

have you been to Chicago airport lately ? i have .........a couple months ago .........
the flights were all late coming in .............it was an international flight as well ...........to France ............mad house !!!!!!!!!!
our flight coming into Chicago was late ,therefore all went crazy ........
if you only have 5 hours ? i would not recommend ,you even leave the airport
it's only my opinion .....
and you would have to get a taxi .........what if coming back ? no cabs available ?
too big of a chance to miss your flight .................((
have a good trip to india ...........

Others
Navy Pier
Go to Navy Pier.
Navy Pier
Try the Museum of Science and Industry on Lake Shore Drive, very up ot date.
Shopping on Michigan Ave
Art Institue or Field Museum
Sears Tower or John Hancock building
You will never make it out of the airport and downtown before you would have to turn around and head back. I would bring a good book and stay put.