The Journal of the Society of Architectural Historians has published a special, virtual issue in celebration of the open-access launch of SAH Archipedia. The SAH Archipedia is an authoritative online encyclopedia of American architecture developed by the Society of Architectural Historians in collaboration with the University of Virginia Press. Drawn from SAH’s award-winning Buildings of the United States series, SAH Archipedia contains building histories, images, maps, and peer-reviewed essays for over 20,000 US structures from all 50 states. The site is searchable by state, building material, style, century, architect, and building type. This important resource, formerly available only to SAH members and institutional subscribers, is now freely available to anyone interested in learning more about the history of US architecture and landscapes. To mark the occasion, JSAH‘s virtual issue features previously published JSAH essays on several key building types found across the country, many of them evolving since colonial times, all of them prominent parts of our present-day built environments. While the articles present specific case studies, the reviews concern more general overviews of particular types. For a limited time, we are pleased to present these essays free of charge. Click here to read the virtual issue.