seems you have picked the most boring route thru NC you could. Charlotte is not worth stopping for. Actually go thru as fast as you can. No better than Detroit. In truth. If you want to see good stuff in NC. You will need to run thru the Mountains, or the coast.
As for stopping in MT Airy. IF you like Andy. It is worth it. But it was NOT used on the show. Just Andy's home town.
IF you have time Take a partial ride on the Blue Ridge Parkway. Mt Mitchell is the highest peak East of the Missippi. And Grandfather Mountain is a good visit, as is the Biltmore house, Lake Lure, And Chiminey Rock.
But none of that is close to Charlotte, or the route thru it.
Terry & Shay
Coachman Apex 288BH.
2013 F150 XLT Off Road
5.0, 3.73
Lazy Campers