Downtown Aquarium Type: Aquarium Neighborhood: Downtown Address: 410 Bagby St, Houston, TX 77002 500,000-gallon aquatic wonderland built in downtown landmarks (Fire Station No. 1 and the Central Waterworks Building), with stingray touch pools, a train ride through a shark tank, a diving-bell ferris wheel, and the Aquarium Restaurant. Hours: Sun-Thu 10am-8:30pm; Fri-Sat 10am-10pm Official Site More activities on HTX Plans