Gosh, there are SO many ideas for a road trip starting in STL! You could explore Illinois (full of history, Rt 66 artifacts/museums, mound sites, Chicago is full of museums too). You could go to Mammoth Cave in KY, and spend a day there.

Other RTA members have suggested looking at the RTA Map Center and attractions lists. Another suggestion: if you are a AAA member, you can go to an office and pick up some maps and tour books to browse through. (If you're not a AAA member, you may be able to find some of the old tour books at a thrift store.) Sometimes when we are short on ideas, we comb through those. We have visited some otherwise-unknown places that way. Maybe this is because I'm rather old-fashioned and prefer the "paper method" of planning a trip.

Donna