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

November 22, 2018
November 23, 2018
December 25, 2018
January 1, 2019
January 21, 2019

Directions to the NAS Building

NAS Building Visitor's Guide

The Einstein Memorial 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.

Keck Center

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