The walls of two newly installed public toilets in Tokyo's Shibuya neighborhood are see-through before people enter, but turn opaque when the doors are closed and locked from the inside. The so-called transparent toilets, which opened this month, were designed by award-winning Japanese architect Shigeru Ban for a project organized by The Nippon Foundation that redesigned a total of 17 public toilets in the neighborhood. The walls of two newly installed public toilets in Tokyo's Shibuya neighborhood are see-through before people enter, but turn opaque when the doors are closed and locked from the inside. The so-called transparent toilets, which opened this month, were designed by award-winning Japanese architect Shigeru Ban for a project organized by The Nippon Foundation that redesigned a total of 17 public toilets in the neighborhood. The see-through walls glow in vibrant colors green, yellow, orange.