My Wife, Kids and I have visited every state in the continetal United States with the exception of Washington, Oregon and California. We always enjoy trips like that. The Stockyards at Fort Worth are worth visiting, and we drove a lot of Route 66 in Arizona. One of the fun things that we have always done is finding a local resturant that serves food that the state is famous for. We enjoy eating the different kinds of food in each state.
Hope you have a great trip. Cherish it, cause it won't be long until it will all change, for one reason or another. Glacier national park is already down to like 10 glaciers. Enjoy while you can. Safe travels.