More than 1600 federal teaching and learning resources organized by subject: art, history, language arts, math, science, and others -- from FREE, the website that makes federal teaching and learning resources easy to find.
The Library of Congress. The Library of Congress is the nation's oldest federal cultural institution, and it serves as the research arm of Congress. It is also the largest library in the world, with more than 120 million items. The collections include books, sound recordings, motion pictures, photographs, maps, and manuscripts.