The CIA is an independent US government agency that provides national security “intelligence” to key US leaders so they can make important, informed decisions. You can read more about them, play some games, and help them solve some puzzles.
The Library of Congress is the nation's oldest federal cultural institution and serves as the research arm of Congress. It is also the largest library in the world, with millions of books, recordings, photographs, maps and manuscripts in its collections.
The American Museum of Natural History is renowned for its exhibitions and scientific collections, which serve as a field guide to the entire planet and present a panorama of the world's cultures.