The Smithsonian Institution

The Smithsonian Institution
The museums are open daily, except Christmas, from 10:00am to 5:30pm (Air & Space 10:00am to 7:30pm and Anacostia Museum which closes at 5 p.m.). Extended Summer hours are determined annually. Smithsonian Information Center: 202/357-2700 (voice) 202/357-2729 (TTY). Metro: Smithsonian or L'Enfant Plaza.