On a recent Saturday, we went to the new National Infantry Museum at Ft. Benning. The exhibits will not be ready until June, but you can eat lunch at the Fife and Drum Restaurant. Go see a movie in the IMAX Theatre (currently showing Everest, The Pyramids, and The Dark Knight). Or spend some money in the Gift Shop.
We did not make it outside, but there is a parade ground, for graduations, etc, WWII era barracks that were moved from Harmony Church on Ft. Benning, and of course Iron Mike to greet you at the door.
I understand that when Ft Knox closes it's doors, a new Armored Museum will also be built near here.
If you opt for shopping, I want one of these . . .