The National Air and Space Museum is, at last, working on restoring their Ho 229. The 229 was an interesting flying wing jet fighter built in Germany during WWII; it had great potential, but as with most such things its legend has been blown far out of proportion, with recent years seeing claims that it was designed as a radar-stealthy fighter (it almost certainly wasn’t) and that it was the source of the postwar Flying Saucer mythology (difficult to envision since none seem to have survived the war in flyable condition).
A website has been set up to document the restoration of the Ho 229. The plane needs a lot of work… construction was of welded steel tubing covered with plywood. The years have not been kind to the plywood.