> The largest city in the world is as big as Austria, but few people have ever heard of it
Pet peeve but this article is confusing Chongqing's entire land area with the city of Chongqing and associated urban areas (only 6% of Chongqing's total land area).
The issue is 直辖市 is translated as "direct-administered city" but should be treated as a "Direct-administered municipality" or "Direct-administered state".
Much of Chongqing (the 直辖市 not the city) was formed due to a reorganization of Sichuan in 1997.