Come see this magnificent building for yourself! When you visit, look for Hellenic, Byzantine, and Egyptian influences, as well as touches of Art Deco.
Learn more by downloading our visitor's guidevisitors guide
Requirements to enter any of our buildings: Government-issued photo ID such as a driver's license or passport. No reservations are required. National Academy of Sciences Building 2101 Constitution Ave., N.W., Washington, D.C.
Hours: 9 a.m. to 5 p.m. on weekdays. Closed weekends and holidays. The NAS Building is closed on April 26 & 29; May 27; June 19; July 4; Sept. 2 & 30; Oct. 1, 18, & 21; Nov. 28 & 29; and Dec. 25, 2024.