National Cryptologic Museum
The exhibits at the National Cryptologic Museum pertain to the history and impact of cryptology (the science of making and breaking codes and ciphers) on world events. Exhibits range from 500-year-old books to the modern super computer. Topic examples at the museum include the Enigma Cipher Machine, the American Civil War, Vietnam, World Wars I and II, aerial reconnaissance, the Korean War, and information assistance.
The museum is owned and operated by the National Security Agency and is open to the public. Admission is free. Guided and self-guided tours are available.