The Arizona-Sonora Desert Museum wears a lot of hats; it's a museum, zoo, aquarium and publishing house. Just outside Tucson, the museum is one of the area's most popular attractions. The facility is dedicated to showcasing the flora, fauna, and history of the Sonoran Desert, with more than 230 species of animals and 1,200 kinds of plants spread throughout the 98 acres of the property. The Arizona-Sonora Desert Museum was founded in 1952, and expanded from its original focus of simply plants and animals native to the region to include an aquarium which opened in 2013. There is a walk-in aviary, a hummingbird aviary, and a desert garden. In addition to the many exhibits, there is a half-mile-long trail that visitors can explore, periodic birds-of-prey demonstrations, and presentations about the area's venomous creatures. There is also an art gallery that showcases local and national artists and a publishing company that produces books and guidebooks for adults and children.