As usual,we've received some great ideas. We've stayed at Wright-Patterson AFB before (they have a nice RV park) and spent two days exploring those museums, so we'll skip that for now. The Amish area in Ohio sounds interesting and we may re-route ourselves to see that area.
I'm really intrigued by US 30 in PA. We've seen the Pentagon Memorial but this would be our chance to see the memorial for Flight 93. I think that's something we are definitely going to do.
I want to thank all of the posters on this forum. When we were towing our 36' fiver posters on this forum kept us out of trouble more than once. We also saw some amazing sites that we might otherwise have missed were it not for the suggestions we received on this website. We are no longer RVing and this is our first major trip without being able to take our "house" with us. I miss that a lot, but we don't miss towing over the bad roads with crazy drivers who don't seem to understand that you can't stop or swerve as easily as you can in a car.
Safe travels. MaryAnne
