Association of Zoos and Aquariums (AZA). Downtown Aquarium, Denver: a public aquarium and restaurant located in Denver, Colorado at the intersection of I-25 and 23rd Ave. The main building sits on a site adjacent to the South Platte River. Its freshwater and marine aquaria total approximately , and exhibit a variety of fish and other animals. The Downtown Aquarium in Denver is owned and operated by Landry's Restaurants, Inc., and is the largest aquarium between Chicago and California. It is accredited by the Association of Zoos and Aquariums (AZA). Nashville: Landry's operates a 200,000 gallon Aquarium in Nashville that contains a variety of fish, sharks, and stingrays. The aquarium operated the Aquarium branded restaurants. Kemah, Texas: Inside the Kemah Boardwalk (also owned by Landry's, Inc.), the company operates an aquarium and restaurant. Cruise Boardwalk FantaSea: A Houston area cruise line offering public and private cruise lines that travel through the Galveston Bay and the Gulf of Mexico. White tiger exhibit On September 19, 2016, a consortium of parties, including the Animal Legal Defense Fund (ALDF), sent Landry's a notice of an intended lawsuit against it under the Endangered Species Act. The lawsuit notice concerned the alleged treatment and habitat conditions of four white tigers exhibited at the Downtown Aquarium, Houston. The ALDF complained that the four tigers, which are federally protected by the Endangered Species Act of 1973, “are kept in deplorable conditions” at the Aquarium. According to a press release provided by the ALDF:"For the last 12 years, Landry’s has deprived these four tigers [...] of any access to sunlight, fresh air, or natural surfaces. These species-inappropriate living conditions violate the ESA [...]. At no point do the tigers have the opportunity to run, jump, or engage in the full range of their natural behaviors. "The dungeon-like conditions that the tigers are forced to endure at Houston’s Downtown Aquarium harm their physical health and psychological wellbeing and deny them much that is natural and important to a tiger," says renowned big cat veterinarian Dr. Jennifer Conrad. "It is cruel to confine complex, roaming carnivores such as tigers to a tiny, dark, artificial, unenriched enclosure where they never see any daylight, much less bask in sunshine, and are at risk for serious long term, debilitating injuries from being forced to live on slippery, unyielding concrete their entire lives." […] "By forcing these tigers to live in what amounts to a