I would be interested to know the dimensions of this tank, as it always seems to look far smaller from above.
I have found some various dimensions for this tank. Their website states that the underwater tunnel is 100 feet long, so that leads me to guess that the width varies from 100 to 125 feet since the width varies. A few photo sharing sites have comments that the length is 284 feet. So that would be about 31,000 square feet.
if i remember right its a foot ball field size tank. i dont think its bigger then 1 1/2 football feilds. minor note here... American football field, not soccer.
Apparently it's 263 x 126 x 33 feet overall (I guess they're average dimensions). HowStuffWorks "Building the Georgia Aquarium"