The security office is located on the ground floor near the Constitution Avenue entrance.

Lost & Found

Lost and Found at the Natural History Building is located in the security office only on the day you lost the item. The item is then kept in a central location with all the Smithsonian lost property.

For more information contact: 202-633-5612
or visit:


For your safety the National Museum of Natural History is equipped with metal detectors. Bags and purses are subject to search and no sharp items will be permitted.


Still and video photography are permitted without the use of a tripod unless otherwise stated in the exhibition.

Smoking is prohibited inside the building and within 25 feet of the doorways.

Strollers are permitted in the museum.

Wheelchairs are available on a first-come, first-served basis from the security office.

Pets are not permitted in the museum, except for service animals.