Jishu, China

103,988 residents? That's a lot of people crammed into one place. Jishu, China is not for the faint of heart - bureaucracy is a persistent headache, and the true purpose of the city's military satellites remains shrouded in secrecy. While the government touts high-speed data transfers, the reality is that Jishu caters to a niche clientele: those with the patience to navigate its maze of red tape and the stomach for potential military intrigue overhead. This city is best suited for the hardy few who can stomach the hassle.