The Arizona Museum of Natural History (originally the Mesa Southwest Museum) is a historical museum located in Mesa, Arizona. The museum includes exhibits about the natural and cultural history of the Southwestern United States.
The museum was founded in 1977 with a collection of Arizona artifacts and has since grown to 80,000 square feet (7,432 square meters) with a collection of 58,000 items. The museum sponsors ongoing excavation at the Mesa Grande Ruin, a large mound in Mesa dating from the Hohokam Classic Period.
Additionally, the museum maintains the Sirrine House, a Queen Anne style home built in Mesa in 1896. The museum claims that the home is the only fully-restored Victorian-era home museum. The Sirrine House is currently only open for special events.