In the New Mexico wilderness, a 312-acre compound built for survival lists for $30 million.
Retired real-estate developer Howard Mintz spent 2-plus decades designing and building it.
Mr. Mintz says the property is energy and water independent.
Spanning around 4,000 square feet with roughly 3,000 square feet of heated outdoor terraces, the house has walls of poured architectural concrete. Perfect place to ride out the apocalypse!