It is free up to 30th September 2018
For IL residents the admission is free for this month only. If tourist then 39.95 adult and 29.95 child 3-11 years of age.
The price of admission is free this month for Illinois residents.
Free this month for Illinois residents otherwise it was $40 for an adult resident and $30 for child resident under the age of 12 you can find the tickets even the free ones online it's the easiest and best way that way you don't have to wait in line
For tourists $47 for adults
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