This sounds like a great trip!! I'm not sure what route you are planning to take, but basically if you take a direct route, you will pass through Ohio, Kentucky and into Tennessee. If you will contact the states that you will be passing through, they will gladly send you maps and information about their state including places to stay, eat and do. I've provided links to these states below, where you can request that information. If you plan on passing through other states, just google the name vacation guide and that should give you some suggested sites to visit. Also, if passing through Ohio and close enough you may like the zoo & aquarium, I've included a link and the US Air Force Museum is also located in Ohio.
I hope you have a fun & safe trip!!!