Jiaojiang, China

With a population of 826,074, Jiaojiang is a crowded district in China's Zhejiang province. The climate is mild, with an average annual temperature of 17°C, but the bureaucracy can be a persistent headache. Precipitation averages a hefty 1,500mm per year. This bustling district was once known as Haimen until 1981, when it was renamed to avoid confusion with another city. Jiaojiang is suitable for those who can navigate the red tape and don't mind the damp conditions.