Chicago's Shedd Aquarium. . Opened in 1930, was a gift to Chicago from philanthropist John G. Shedd, a protégé of Marshall Field. Designed in a neoclassical style, it was one of the first inland aquariums in the world to house and transport saltwater, requiring an ambitious effort of shipping ocean water by train from Florida to fill its tanks. Over the decades, Shedd has grown into one of the largest and most visited aquariums in the world, known for its innovative exhibits and commitment to co