For anyone looking for something to do today thats maybe a half day event, I have a couple of suggestions.
For the old car nut, I highly recommend Old Car City. I went a couple months ago and I would estimate 95% of the vehicles are 1960-1975 American cars. Be prepared to walk...a lot. Very friendly GT parking lot and a nice drive out there. Stay away from rush hour. "Come enjoy the Old South environment, folk art, ghosts of beautiful classic cars, and much more! With over 34 acres and over 4000 American-made cars from the early 20th Century, these cars, trucks, vans, and even a couple school buses are placed in such a way as to be ideally suited for photos." https://www.oldcarcityusa.com/
For the adrenaline junky, the kart track at Atlanta Motorsports Park is one of the best in the world and has some awesome elevation changes. This is not your normal K1 Speed track. It is outdoors and very exciting and challenging. They have public karting starting at 1PM each day. You can drive up GA 400 (the highway next to the hotel), but some of the back roads drive through some great GA countryside. https://atlantamotorsportspark.com/karting/