During Illinois Free Days, any Illinois resident who shows valid proof of residency will receive free admission on the following dates: September 5-8, 11-15, 18-22, and 25-29.
Separate admission is required for Giant Dome Theater films, Coal Mine and optional U-505 onboard tours, as well and certain temporary exhibits. No further Chicago residency discounts apply on Illinois Free Days.
For more information, click here.