Shanghai (Chinese: ??) is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China; with a population of over 23 million as of 2010. Due to its rapid development over the last two decades it has again become a global city; exerting influence over commerce; finance; media; fashion; technology and culture. Today Shanghai is a major financial centre and the busiest container port in the world.

Located in the Yangtze River Delta in eastern China; Shanghai sits at the mouth of the Yangtze River in the middle portion of the Chinese coast. The municipality borders Jiangsu and Zhejiang Provinces to the west; and is bounded to the east by the East China Sea.

Once a fishing and textiles town; Shanghai grew in importance in the 19th century due to its favourable port location and was one of the cities opened to foreign trade by the 1842 Treaty of Nanking. The city then flourished as a centre of commerce between east and west; and became a multinational hub of finance and business in the 1930s. However; with the Communist Party takeover of the mainland in 1949; the city's international influence declined. In 1990; the economic reforms introduced by Deng Xiaoping resulted in an intense re-development of the city; aiding the return of finance and foreign investment to the city.

Shanghai is also a popular tourist destination renowned for its historical landmarks such as The Bund; City God Temple and Yuyuan Garden; as well as the extensive and growing Pudong skyline.