Stone Mountain (east of ATL) has a lot of history (confederacy) and of course the mountain and carving.
Sweetwater brewery is just off the 85 interchange just north of the 75 split.
We've got World of Coke, College Football hall of Fame, and our own Aquarium - all right beside each other in the downtown area.
Not in Ga - but on a route further north - Ever done the dragon?
https://tailofthedragon.com/
Edit - for Porsche - you MUST have a reservation. You can't just drop in. Place a reservation for lunch or dinner at one of the restaurants to get in.