The National Museum of the United States Air Force (formerly the United States Air Force Museum) is the official museum of the United States Air Force located at Wright-Patterson Air Force Base, 6 miles (9.7 km) northeast of Dayton, Ohio.
The NMUSAF is the oldest and largest military aviation museum in the world, with more than 360 aircraft and missiles on display.
The museum draws about a million visitors each year, making it one of the most frequently visited tourist attractions in Ohio. It was founded in 1923.
The museum's collection contains many rare aircraft of historical or technological importance, and various memorabilia and artifacts from the history and development of aviation.
Among them is the Apollo 15 Command Module Endeavour which orbited the Moon 74 times in 1971, one of four surviving Convair B-36 Peacemakers, the only surviving North American XB-70 Valkyrie and Bockscar—the Boeing B-29 Superfortress.
According to en.wikipedia