Tianjin is a coastal giant of nearly 13.9 million people at the 2020 census, sitting on the west coast of the Bohai Gulf about 120 kilometres from Beijing and ranking as the largest coastal city in northern China. A treaty port since 1860, it carries the villas and churches foreign concessions left behind alongside two of China's oldest universities: Tianjin University, founded in 1895 as the country's first modern university, and Nankai University, founded in 1919. The Beijing to Tianjin intercity railway covers the distance in just 30 minutes at up to 350 kilometres an hour, making Tianjin feel like a satellite of the capital rather than a separate trip.


