Society of Architectural Historians

Founded at Harvard University in 1940, the Society of Architectural Historians is a nonprofit membership organization that serves a network of local, national, and international institutions and individuals who, by profession or interest, focus on the history of the built environment and its role in shaping contemporary life. 


SAH Archipedia

An open-access, mobile-friendly, and authoritative online encyclopedia of the built environment of the United States. The newly redesigned SAH Archipedia brings peer-reviewed scholarship to a worldwide audience interested in learning more about the architectural history of the U.S.


Association for Preservation Technology - DC Chapter

As the local chapter of the Association for Preservation Technology, International (APTI), APT DC was founded in 1980 to serve the needs of preservationists in the National Capital Region. APT DC promotes the exchange of ideas and knowledge concerning the conservation of historic resources and the application of preservation technology.


National Building Museum

The National Building Museum transforms understanding of the history and impact of architecture, engineering, landscape architecture, and design. Through exhibitions, educational programs, and special events, they welcome all ages to experience stories about the built world and its power to shape our lives, communities, and futures.


DC Preservation League

The mission of the DC Preservation League is to preserve, protect, and enhance the historic and built environment of Washington, DC, through advocacy and education.