South of where your heading in the states i can suggest:
you should follow the national scenic byways, you can get maps of them pretty easy
my favourites were the Appalacian mountains blue ridge parkway through virginia, natchez trail parkway in mississippi.
I also liked mammoth caves, graceland, Austin for a good party, Lafayette and New Orleans in the south.
Also sweet rides through the rockies in Wyoming, Montana, Colorado .
Utah all over is amazing if your heading that far west.
Mesa Verde and the Petrified National Forest are scenic too around four corners.