Looks like a good plan. I've never been to NYC and Pittsburgh. Bryce Canyon and Yellowstone are great. Salt Lake City is interesting; I found the Mormon Museum very interesting. Austin is my favorite Texas city. The music clubs on 6th Street are nice places to spend a night. The coolest one was Joe's Generic Bar, but I heard it's was closed down when the owner was murdered, probably with a handgun >;)Cold As Heaven
4 weeks, more than 7000km in a car (coast to coast), a couple of domestic flights, and sooooo many memories to create.
Have your read On the Road by Jack Kerouac?
No, you recommended it as road trip literature earlier.