Comment by rurban

If you call Chongqing the largest city in the world (it is not), you need to call Canton (the Greater Bay Area, GBA) bigger. With 86m and the cities of Guangzhou, Shenzen, Foshan,... even without Hong Kong and Macao, it's the largest mega city by far.

https://en.wikipedia.org/wiki/Guangdong%E2%80%93Hong_Kong%E2...