National Gallery of Art
4th and Constitution Ave
Washington DC, 20565
United States

Phone: (202) 842-6144
Fax: (202) 842-2356
Website: www.nga.gov
Contact: Sarah Greenough, Curator of Photographs
Established: 1941
Open: Mon-Sat 10am-5pm, Sun 11am-6pm.

Large collection of photographs by a few key figures, including Alfred Stieglitz, Walker Evans, Paul Strand and Robert Frank.