Atlanta, Georgia is now home to the world’s largest aquarium, the Georgia Aquarium, holding upwards of 8.5 million gallons of water and 120,000 animals covering more than 500 species from 60 different habitats. Atlanta, Georgia is now home to the world’s largest aquarium, the Georgia Aquarium, holding upwards of 8.5 million gallons of water and 120,000 animals covering more than 500 species from 60 different habitats. Some of the more notable species are four beluga whales, manta rays and young whale sharks (the only aquarium outside of Asia to hold this species). The aquarium is situated around a central atrium, with five different galleries to visit, which are the Tropical Diver, Cold-Water Quest, Georgia Explorer, River Scout and Ocean Voyager. The aquarium construction was largely funded by Home Depot co-founder Bernie Marcus’ $250 million donation. The aquarium sits on 20 acres just north of the Centennial Olympic Park and opened to the general public in November of 2005. Source