Geologist Bruce A. Black built a cosy home in vertical cliffs in New Mexico influenced by Puebloan architecture called Koko's Cave, or Kokopelli's Cave.
Was he anticipating a nuclear holocaust? For a few extra square feet of office space, someone would have to dig down the side of a cliff in a steep valley and spend $20,000 on it, right?
Who is that? A naval intelligence commander. And in 1982, while sharing a few beers with two miners, the Zink brothers, Bruce A. Black drew the initi...
