The Tennessee Aquarium is a non-profit public aquarium located in Chattanooga, Tennessee. Its River Journey building is the largest freshwater aquarium in the world.
The Tennessee Aquarium's River Journey and Ocean Journey buildings are home to more than 12,000 animals including fish, reptiles, amphibians, invertebrates, birds, penguins, butterflies and more. The original River Journey facility is organized around the theme of the Story of the River, following the path of a raindrop from high in the Appalachian Mountains to the Gulf of Mexico. Approximately 2/3 of the facility's display follows this theme, with the rest devoted to smaller aquatic exhibits hosting organisms from around the world.