Henry Crown Space Center and the real German Submarine U-505 are the great attractions. You can also have a trip into giant brain or walk-through heart here in the museum.
Museum of Science and Industry, and the Field Museum
Chicago has several of the best museums in the country. The Field Museum and the Museum of Science and Industry are way up there.
Fun place! You get to hop into planes and play in the cockpit. You can explore a real submarine! You can jump onto tractors and be Farmer John for the day.