The National Museum of the United States Air Force (formerly the United States Air Force Museum) is the official National Museum of the United States Air Force and is located at Wright-Patterson Air Force Base, near Dayton, Ohio. The NMUSAF is the world's largest and oldest military aviation museum. More than 400 aircraft and missiles are on display, most of them indoors. The museum draws over 1.3 million visitors per year and is one of the single most visited tourist attractions in Ohio. Admission is free.
Opened to the public in 2004, the Missile and Space Gallery is contained in a silo-like structure that stands 140 feet high. Visitors can view missiles such as the Titan I and II and Jupiter from ground level or can take in an aerial view from an elevated platform that hugs the inside circumference of the gallery. As part of the museum's ongoing expansion efforts, the gallery also features a portion of the museum's space collection, including the Apollo 15 Command Module, Mercury and Gemini capsules, rocket engines, satellites and balloon gondolas.