Castle Air Museum is a nonprofit military-aviation heritage museum on 35 acres of the former Castle Air Force Base, with more than 80 historic aircraft from pre-World War II through the Cold War, rare bombers, artifacts and weekend or by-appointment tours of a presidential VC-9. The museum publishes daily 09:00–16:00 access; inclement weather and operator closure notices can affect the visit, so check current conditions before travel. VC-9 tours are weather-dependent and separately arranged. Group and school tours are available with pre-registration. Current visitor address: 5050 Santa Fe Drive, Atwater, California 95301, United States.