Our family's 2000-mile trip took five days to drive and gave all of us an invaluable look at our country. For our 1985 move, we decided to drive one of our two cars from Oregon to Iowa while the moving van made its own way. But the better of our two cars was a 1949 Plymouth I was restoring. Get a book on national parks and check entrance fees. Call toll-free numbers for major attractions along the way.
Many cities offer sightseeing tours by bus at a reasonable cost.
Or you can see the downtown area in a horse-drawn carriage. There's something fun to do almost everywhere. And remember, you can do lots of fun things for free. Most parks are free. Lots of small museums ask only for a donation.