As of 2012, approximately how many catalogued specimens are housed at the Smithsonian Museum of Natural History in Washington, D.C.?

The Smithsonian Museum of Natural History is located in the National Mall in Washington, D.C., United States. As of 2012, it has approximately 126 million catalogued specimens from around the world located in the exhibits.

In 2016, with 7.1 million visitors, the Museum of Natural History was the fourth most visited museum in the world and the most visited natural-history museum in the world. The entire museum's collection contains specimens of plants, animals, fossils, minerals, rocks, meteorites, human remains, and human cultural artifacts. It is also home to about 185 professional natural-history scientists- the largest group of scientists dedicated to the study of natural and cultural history in the world.

The main building has an overall area of 1,500,000 square feet (140,000 m2) with 325, 000 square feet (30,200m2) of exhibition and pubic space. There are approximately 1,000 employees working at the museum.