Thanks, Mark.
I added the Devil's Tower and Crazy Horse Memorial.
16 overnight stops -- one of them 3 weeks long, a few 2 or 3 nights.
I was stationed at Redstone Arsenal - Missile & Munitions School in 1966. NASA had displays of lots of rockets. Hope they still do. Also going to visit Johnson Space Center in Houston.
Louisville - looking for ideas. Not a baseball fan, though. Maybe visit the racetrack.