You'll discover Pritzker Prize winner Shigeru Ban's ingenious transparent toilet that challenges every assumption about public restrooms. When vacant, the frosted glass walls become completely clear, revealing the pristine interior and creating an unexpected architectural spectacle in this quiet Shibuya neighborhood. The moment you lock the door, smart glass technology instantly obscures the walls, transforming transparency into privacy with theatrical flair. Ban's concept brilliantly addresses hygiene concerns while creating a landmark that glows like a lantern at night.