Chicago Museum of Science of Industry.

I loved touring the Museum of Science and Industry.  I really enjoyed checking out the WW II U-505 German submarine and the retired 727 jet airplane that we found at this museum.  As we toured the retired plane, we got to talk with a retired pilot about the changes in airplanes over the past 40 years.  That was an interesting conversation.  

This museum is a wonderful, interactive learning environment for kids and adults.  Very cool place.  

This picture shows the WWII German submarine displayed at the Museum of Science and Industry.