National Museum of Natural History

The National Museum of Natural History is a natural history museum administered by the Smithsonian Institution, located on the National Mall in Washington, D.C., United States. With free admission and open doors 364 days a year, it is the most visited natural history museum in the world, and most visited museum (of any type) in North America.^[1] Opened in 1910, the museum on the National Mall was one of the first Smithsonian buildings constructed exclusively to hold the national collections and research facilities.^[3] The main building has an overall area of 1,320,000 square feet (123,000 m²) with 350,000 square feet (33,000 m²) of exhibition and public space and houses over 1,000 employees.^[3]

• http://en.wikipedia.org/wiki/National Museum of Natural History