John G. Shedd Aquarium, a non-profit institution dedicated to public education and conservation, is the world's largest indoor aquarium. The facility houses nearly 8,000 aquatic animals representing some 650 species of fish, reptiles, amphibians, invertebrates, birds and mammals from waters around the world. Beautifully situated on the shores of Lake Michigan, Shedd Aquarium attracts nearly 2 million visitors each year. Since 1930, when it opened, the Aquarium's mission has been to promote public understanding and appreciation of the aquatic world.

Shedd Aquarium is owned and managed by the Shedd Aquarium Society, in partnership with the Chicago Park District. It is accredited by the American Zoo and Aquarium Association (AZA) and is a member of the Alliance of Marine Mammal Parks and Aquariums.