Archiseek

Website URL: www.archiseek.com

Architecture Studies Library, University of Nevada

Website URL: http://library.nevada.edu/arch/

Avery Architectural and Fine Arts Library

Website URL: http://www.columbia.edu/cu/lweb/indiv

Digital Archive of American Architecture

Website URL: https://web.archive.org/web/20140424140827/http://www.bc.edu/bc_org/avp/cas/fnart/arch/

Great Buildings Online

Website URL: www.greatbuildings.com/

Heritage Documentation Programs - Historic American Building Survey/ Historic American Engineering Record

Website URL: http://www.nps.gov/hdp/

Library of Congress - Touring Turn of the Century America, Detroit Publishing Co. 1880-1920

Website URL: http://memory.loc.gov/ammem/collections/touring/

Library of Congress American Memory

Website URL: http://memory.loc.gov/ammem/index.html

Library of Congress Architecture, Center for American Architecture, Design and Engineering Project

Website URL: http://loc.gov/rr/print/adecenter/adecent.html

Library of Congress Prints and Photographs Reading Room

Website URL: http://loc.gov/rr/print/

National Building Museum 

Website URL: http://www.nbm.org/