Myself and 4-8 of my friends will be taking a trip during the break between semsters (5/3-5/11/02) - staying at State Parks and cheap motels. We want to go to St. Louis, MO; Southbend, IL; and Heshey Park, PA -- but we're not sure what to see in between the major stops. We'd like to stop at some local colleges that may be in session and also see monuments, museums and stuff. Any ideas/ suggestions. (Its no big deal if we run out of time and don't make it all the way to PA - we just want to have fun.)