A yurt is a round cylindrical dwelling capped with a conic roof that's been in use for at least the past few thousand years. Originating in Central Asia (Genghis Khan and his horde used them), the yurt was valued by its native progenitors for its portability, durability and structural soundness. Yurts are easy to put up and take down (requiring just a couple hours of work) and could be transported on the backs of horses and yaks, vital requirements for nomadic pastoralists.
Today's yurts retain the same overall design principles as their East Asian ancestors, but they include modern materials like clear acrylic windows, high-strength steel cables, and UV-resistant marine quality polyester siding. Nowadays you can get a yurt with French doors, windows, gutters and skylights. Yurts can be found high up on mountains serving backcountry skiers, nestled deep in the woods housing campers and hikers, and next to rivers as the primary residence of former insurance executives.