If you are a student its free if not $12
Admission is $12 for adults, $10 for seniors, students with ID and children are FREE. Tomorrow and Sunday, Sept 8th are free. After that, Sept 21st is Smithsonian Museum Day so it is free that day. Also, every 3rd Thursday from 5-8pm is free. Lots of free days! :)
If you're a student, you get in for free but I can't remember how much admissions was
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