Open daily 10 a.m. to 5:30 p.m.
Admission is always free!
2 Massachusetts Ave., N.E.
Washington, DC 20002
The museum's main entrance is located on the corner of First Street and Massachusetts Avenue NE. Other entrances have variable hours.
Please note, due to Smithsonian Institution conservation and preservation protocols, the selection of objects and images on this website may differ from the items on exhibit in the museum’s Systems at Work gallery.