On the 2nd day after our trip to Zoo Atlanta, we went to The Undeground which is a mall in Atlanta. We heard good things from people who had been there years prior. However The Underground now is sadly, a waste of time. Most of the places here are empty and the few tenants never appealed to either of us.
The only neat thing I saw were these painted giant baseballs. Even though I don't advise coming here at any point of the day, don't be stupid enough to show up at night. I hear it gets really scary. I also noticed that all the "malls" downtown are really dumb. Besides restaurants and tourist attractions, there is almost nothing good about Atlanta's downtown.