Reged: 02/15/05
Posts: 1999
Loc: Northern Illinois, USA
...although I don't go as often as I thought I would when I moved here. (It's little more than an hour east of me.)
Also, most museums in Illinois have a weekly "donation day" or "free day" if they receive state funding. Special exhibits will still have admission, but general admission is no charge...just a tip if you thought about taking in the Field Museum or the Art Institute. I know both have donation days; I just can't remember what day(s).