Tokyo Ultra-narrow House Tokyo Tokyo (東京 Tōkyō), officially Tokyo Metropolis (東京都), is one of the 47 prefectures of Japan, and is both the capital and most populous city of Japan. Journal · 10 · 03+♥ 436 Last update at 03 · 10 · by milo ‧‧‧ One of 7755Tokyo More in Tokyo Home Tokyo Ultra-narrow House Tokyo PIFTW