^^^^
Just like the pyramids, extraterrestrials did it! ')

Whoops.

The Boeing Bird of Prey was a trailblazing stealth aircraft secretly developed by the US military between 1992 to 1999 at Area 51. Its extraterrestrial appearance would no doubt be responsible for UFO sightings occurring at the time.

Starting in the mid-1920s Polson acquired a herd of these Clyde gas yarders. They took over most of the logging and fed the three tree rigged skidders.

The San Boldo Pass in Italy.