Yanliang, China

With a population of just 303,284, Yanliang District is the smallest and most sparsely populated corner of Xi'an. Aircraft manufacturing dominates the local economy, with the state-owned AVIC corporation operating a highly restricted campus that serves as the district's biggest employer. Gaining access to the company's facilities is a bureaucratic headache, as the site deals extensively with sensitive military information. On the plus side, Yanliang is home to two major rail lines, connecting it to the broader Shaanxi region. Overall, this industrial enclave is best suited for those with a strong stomach for red tape and a high tolerance for the regimented lifestyle of a state-owned company town.