GreenFILE offers well-researched information covering all aspects of human impact to the environment. Its collection of scholarly, government and general-interest titles includes content on global warming, green building, pollution, sustainable agriculture, renewable energy, recycling, and more. The database provides indexing and abstracts for more than 384,000 records, as well as Open Access full text for more than 4,700 records.
The Cities and Buildings Database is a collection of digitized images of buildings and cities drawn from across time and throughout the world, available to students, researchers and educators on the web. From the University of Washington
The Gottscho-Schleisner Collection at the Library of Congress is comprised of over 29,000 images primarily of architectural subjects, including interiors and exteriors of homes, stores, offices, factories, historic buildings, and other structures.