One day in Atlanta
 

I have one day in Atlanta in late September. What should I do? I enjoy history and the outdoors.

Jimmy Carter's Presidential Library in there.

Stone Mountain which is a monument to the Confederacy is close by.

Google both.

Non-historical...well, a bit historical, I guess: The World of Coca Cola is in the heart of the city.

Forgot. There is also a cyclorama depicting the Battle of Atlanta.

Centennial Park and a CNN studio tour, if that interests you.

Margaret Mitchell house if you're a Gone with the Wind fan.

These are a good combo of your interests -
http://www.preserveatlanta.com/walkingtours.htm