The CIA Museum, administered by the Center for the Study of Intelligence, is a national archive for the collection, preservation, documentation and exhibition of intelligence artifacts, culture, and history. The collection, which currently numbers 3,500 items, is held in trust for the American people. Because the museum is not open to the public, the CIA Museum develops public exhibitions in partnership with the Presidential Libraries and other major museums and institutions in order to promote a wider understanding of the craft of intelligence and its role in the broader American experience. The National Cryptologic Museum, which is open to the public, is the NSA counterpart to the CIA Museum and focuses on cryptology as opposed to human intelligence.