The 500,000-gallon under-water adventure complex includes a Ferris wheel, an aquatic carousel, Shark Voyage, a white tiger exhibit and a restaurant.

Houston's first public aquarium, the Downtown Aquarium was designed to entertain the masses. The world-class complex, perched on the redeveloped 400 block of Bagby, boasts 500,000 gallons of visible underwater tanks with more than 200 species of marine life - and that's just skimming the surface.