(Image credit: Daigo Ishii + Future-scape Architects)

Public restrooms are hardly examples of good design, unless you're in Ibuki-shima, Japan. House of Toilet mimics the simple pitched roof style of surrounding homes, with six slits intersecting the building —they point to major cities on the six habitable continents, and align with 9 am sun on three important holidays and the solstices, flooding the structure with light.

Flush With Beauty: A Designer Public Restroom in Japan | Architizer