Our daughter just won first place in her state cheerleading competition,thus we will be driving from Denver to Nashville for Nationals. We thought that driving would give us a chance to show our kids a bit of the country that they have not seen. We are looking for ideas of places that that we should see as well as must sees. I know that we want to stop at the Arch in St. Louis but beyond that we are looking for a bit of help for great place to stop. Our kids are 6 and 10. Any Suggestions would be helpful.