Check out the Trip Tik from AAA. You don't have to be a member to use. It's on line. If I remember correctly it plots your way and tells you about attractions in the area.
Hit a few National parks. Utah has a few... Bryce, Zion.
http://www.nps.gov/index.htm
Grand Tetons are just beautiful and you can check out the little town of Jackson Hole.
Yellowstone, Rocky Mountains
Texas-- you can hit the Alamo and the river walk.