Foshan, China

With a population over 9.4 million, Foshan is a sprawling economic powerhouse - but it comes with a price. The tax burden is heavy, and navigating the bureaucracy can be a persistent headache. Though touted as the "Birmingham of China" for its steel and ceramics, the city's industrial past has left its mark, with the local climate described as humid subtropical. Still, Foshan's strategic location and booming manufacturing base make it an attractive option for those seeking economic opportunity, if they can stomach the challenges.