At the Cracker Barrel, near the Intersate highway system somewhere in this great and surprisingly large country. These are pretty good places to stop. They have nice wait-people and usually serve down-home food. Curiously, they do not sell postcards, though almost everything else of a souvenir nature is available.
By the way, the observant among you will note that I have finally figured out how to get pictures in my posts on Blogger. I am sorry for the unkind words I used in the past few months on this matter.