U.S. Department of the Interior, National Park Service
Cooperative Preservation of Architectural Records (COPAR)
A national center for information on architectural records throughout the United States. COPAR directs researchers to repositories in all states.
Historic American Buildings
Survey/ Historic American Engineering Record (HABS/HAER)
Records for more than 25,000 historic buildings and structures. The HABS/HAER collection is reproducible and copyright free. Records are accessible at, and may be ordered from, the Library of Congress, Prints and Photographs Division, Washington, DC, 20540.
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