The yurt, a 'modern' adaptation of the Mongolian ger, is a fabric skinned structure, round in shape, with a conical roof. its skeleton is comprised of overlapping slats of strong wood constructed and operated much like a folding baby gate.
The walls and ceiling are often double thickness, with a heavy layer of insulation between, and they are available with fully operable glass windows and framed doors.
I dream of one day living in a yurt.