Arado Ar 234B-2 Blitz

This particular aircraft was one of nine captured by the British in Norway. An Army Air Force team called "Watson's Whizzers" were collecting German technology as the war ended. They showed the Brits some phony papers and before they knew it had flown four of the rare Nazi bombers outa there to a ship which took them back to America for flight testing. After that, the Air Force basically abandoned them on the ramp.

The Smithsonian got this one. Nobody knows what happenned to two of them. They just disappeared. The last one sat on the ramp for years until the base commander decided he needed more tarmac and plowed the rare jet into the ground as landfill to build it. This is the last surviving example of the Arado.

You'd think that rare historical artifacts would be preserved but the reason there are so few of them is that most are casually destroyed. You have to make an effort to preserve them.