#29 Davis-Monthan Air Force Base Aircraft Boneyard, Tucson, Arizona, Usa
32.151087°, –110.826079°. The largest aircraft storage and preservation facility in the world is located at Davis-Monthan Air Force Base in Tucson, Arizona, USA. The boneyard—run by the 309th Airspace Maintenance and Regeneration Group—contains more than 4,400 retired American military and government aircraft.