Officially designated as “Area 25” in the Nevada desert, this was a military facility that was the home of Project PLUTO. The aim was to build a Supersonic Low Altitude Missile, powered by a nuclear engine. There’d be multiple nuclear warheads, and it would have had unlimited range.

The project was deemed too controversial and was scrapped. All the surface buildings have been razed, and now it’s merely used for military exercises and solar research.

Yeah, right.