Peeking out from underneath bumpy layers of greenery, this amazing abode looks more like something out of a fairy tale than real life. But don’t take this Swiss estate lightly. Designed by Vetsch Architektur, the structure was built using earth house construction, resulting in an insulating blanket that protects it from rain, low temperatures, wind and natural abrasion.
When you think about “modern living,” “cave-dwelling” isn’t usually the first phrase that springs to mind. But this eye-popping home nestled inside of a 15,000-square foot sandstone cave in Festus, Missouri is the best of both worlds. Built by Curt and Deborah Sleeper, the underground abode features smart examples of energy-efficient architecture like geothermal heating and passive design that keep the interior comfortable while completely eliminating the need for a furnace or air conditioning.