The Smithsonian Institution’s National Museum of Natural History

The National Museum of Natural History (NMNH), founded in 1846 as part of the Smithsonian Institution (SI), opened in 1910 as the third of the Smithsonian’s Mall buildings. That neoclassical building is now flanked by later additions. The most recent major project infilled two large courtyards, increasing the building area to a million and a half square feet.

This museum, which is open 364 days a year, vies with the Smithsonian National Air and Space Museum and the Louvre in Paris for the most visited museum in the world.

Over the years, we have worked on projects at this building top to bottom, inside and out, railings to roofing.

Examples illustrating our projects follow.