Check out the weird but cool site tokyotoilet.jp, which reviews lots of unusual public toilets in Tokyo.
The Yoyogi-Hachiman Toilet is located around 35°40’21.09″ N 139°41’13.66″ E just on the west side of Yoyogi Hachiman Shrine.
LINKS
https://tokyotoilet.jp/en/yoyogi_hachiman/
https://shrine.iki-kiru.com/en/yoyogi-hachiman/