Where are cool places to stop at that are cheap on a roadtrip from wisconsin to south carolina?

My family is going to south carolina and we want to stop at cool places on out way there... Any sweet places to go that don't cost a lot?|||Here is a geat place to find strange roadside attractions:

http://www.roadsideamerica.com/



To give you an idea of what's on the site, here is the listing just for South Carlolina

http://www.roadsideamerica.com/location/鈥?/a>