Shanghai (China)

Wikipedia says: Shanghai is a direct-administered municipality and the most populous urban area in China. The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the Huangpu River bisecting the city.

Originally a fishing village and market town, Shanghai grew to global prominence in the 19th century due to domestic and foreign trade and its favorable port location. The city was one of five treaty ports forced to open to trade with the Europeans after the First Opium War, with the Shanghai International Settlement and French Concession subsequently established.