Mianyang, China

With a population of 4.868 million, Mianyang is a major economic hub in Sichuan province, but life here comes with some persistent headaches. The tax burden is heavy, as the city's largest employer, Sichuan Changhong Electric, provides two-thirds of municipal revenue. And while the subtropical climate is largely mild, the meager 1,100 annual hours of sunshine can make for gloomy winters. On the plus side, Mianyang boasts a robust scientific and technological base, including the China Academy of Engineering Physics. Overall, this city is best suited for those drawn to its burgeoning industry and research opportunities, despite the bureaucratic challenges.