For years the phrase "underground living" was reserved for cramped war bunkers and dingy basements, but a new crop of dwellings—either partially or fully submerged into the ground—have evolved into modern art forms, boasting dynamic shapes and cutting-edge energy efficiency.
Out of the Box: 10 Amazing Underground Homes
Tall buildings have long symbolized towering achievement, but architects in the know say the new up is down—into the ground, that is.
Cave House in Festus, Missouri
The current residents of this cave home actually found the property on eBay. Over the course of four years, they managed to carve out loads of workspace and three bedrooms, with geothermal heat (so there's no need for a furnace). The sandstone lair is now an office for their small business.
Photo courtesy of Caveland.Us