Cross-section Kowloon Walled City: what was the densest place on Earth. [3842x6263] : MapPornhttps://www.reddit.com/r/MapPorn/comments/zt9gxt/crosssection_kowloon_walled_city_what_was_the/ infographie histoire infographie histoire https://fr.wikipedia.org/wiki/Citadelle_de_Kowloon