Authoritative online encyclopedia of the built world published by the Society of Architectural Historians and the University of Virginia Press. It contains histories, photographs, and maps for 8,500+ structures and places within the United States. Though consisting of mostly buildings, one can find landscapes, infrastructure, monuments, artwork, and more. The content is drawn from the award-winning book series, Buildings of the United States, and includes histories and thematic essays from 12 of the published BUS volumes. The resource is still growing and is slated to include approximately 100 building entries from all BUS volumes.