Kanmon Pedestrian Tunnel in Shimonoseki, Japan

Filed by Max the Cryptid Reporter

Almost nobody realizes Japan's main islands can be crossed on foot, at the midpoint of 780 meters of tiled corridor a painted line marks the boundary between Yamaguchi and Fukuoka prefectures. The Shimonoseki entrance opens onto Mimosusogawa Park, overlooking the water where the Taira clan was annihilated at Dan-no-ura in 1185, which means the whole fifteen-minute walk passes under one of the most consequential battles in Japanese history.