Chéngguān Qū, China

With a population of 478,275, Chéngguān Qū is no quaint backwater. Bureaucracy is a persistent headache, as the local government's heavy-handed 'Chengguan' enforcement practices have a reputation for hassling residents and businesses. The district is also a major hub, so expect the usual big-city challenges like traffic and pollution. Overall, Chéngguān Qū is best suited for those who can navigate its red tape and bustling urban environment.