I had no idea what the wing was from: It looked like a 1930s biplane to me—not very exciting, and I gently prodded the donor to see if there might be any other odd bits of old airplanes lying about.

We could spend hours looking at the results. —The editors Dry desert air makes Tucson a great place to preserve old airplanes, and Pima Air & Space Museum accordingly hosts one of the world’s ...