concrete bunker home

The half-submerged bunker has an internal area of just nine square metres, with less than two-metres head height, so furnishings had to be kept to the absolute minimum and everything had to be custom made to make optimum use of space. (http://www.dezeen.com/2014/10/28/b-ild-concrete-wartime-bunker-pavilion-conversion-holiday-home-netherlands/)