What is the Largest City in the World ?

Hi! In this video we will see what is the biggest city in the world. It can be the largest city proper, municipality, urban area, metropolitan area, gross domestic product, by population, by land area ...
Tokyo or Chongqing are often mentioned to be the largest city in the world. But it is the truth ?
Music :
Karl Casey @ White Bat Audio : Rain City

[@pipebomber04]

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