St. Louis Aquarium at Union Station

St. Louis Aquarium at Union Station is at 201 S. 18th St. This 120,000-square-foot aquarium is home to more than 13,000 animals, representing 257 species, across 44 exhibits. An aquarium highlight is a visit to Shark Canyon, the 250,000-gallon shark tank where visitors can view such marine life as devil rays, a giant grouper, gray reef sharks, surgeonfish and thousands of schooling sardines.

Behind-the-Scenes Tours and Animal Encounters also are featured for an additional charge.

Guided tours are available. Food is available. Time: Allow 2 hours, 30 minutes minimum.