The 309th Aerospace Maintenance and Regeneration Group stores thousands of retired military, forest service, and NASA aircraft in the Arizona desert. The massive collection of F-16s, C-5s, B-52s, A-4 Skyhawks, and others would be the world's second-largest air force. But the planes don't just come here to die. Parts are reclaimed and entire planes are regenerated so they can go back into service.
