Locations and Hours
National Academy of Sciences Building
2101 Constitution Ave., N.W., Washington, D.C.
Hours: 9 a.m. to 5 p.m. on weekdays. Photo ID required. Closed weekends and holidays.
Upcoming Closed Dates
January 16, and 20, 2017
February 20, 2017
May 1, 2, and 29, 2017
July 4, 2017
September 4, 2017
Directions to the NAS Building
NAS Building Visitor's Guide
NAS Great Hall Website
Prior to visiting the NAS Building, download the free NAS Great Hall iPad App from iTunes. Don't have an iPad? You can check one out during your visit from the NAS Building security desk. You will need to leave a government issued photo ID with security.
500 Fifth St., N.W., Washington, D.C.
Hours: Lobby accessible to the public 9 a.m. to 5 p.m. weekdays. Photo ID required. Closed weekends and holidays.
Keck Lobby Brochure