Alright, inspired by the recent Unbuilt Canada and Unbuilt Australia threads, along with the somewhat more distant Unbuilt Britain thread.
This is a thread for sharing and discussing proposed, planned, or cancelled building/infrastructure projects in Japan, and their potential impact had they been built. Japan is an absolute treasure trove for these discussions what with it's proposals for indoor cities, tunnels to Korea, and billion dollar schemes to fill in Tokyo Bay. Naturally this thread isn't just limited to mega projects, and more humble proposals are more than welcome.
This is a thread for sharing and discussing proposed, planned, or cancelled building/infrastructure projects in Japan, and their potential impact had they been built. Japan is an absolute treasure trove for these discussions what with it's proposals for indoor cities, tunnels to Korea, and billion dollar schemes to fill in Tokyo Bay. Naturally this thread isn't just limited to mega projects, and more humble proposals are more than welcome.