The Georgia Aquarium is amazing. I visited it just recently. It was well worth the trip. It was awe-inspiring to look into the 6.3 million gallon aquarium and see Whale Sharks, Manta Rays and much more. Whale Sharks are the largest fish on Earth and the Georgia Aquarium has four of them. There are also Beluga Whales at the Aquarium too. I highly recommend visiting it if you ever travel near Atlanta.
