Tianjin Jinghai District. According to Baidu map, a street on Dong 'an Road in Tianjin is located in Jinghai District of Tianjin. Tianjin, also known as Jingu and Jinmen, is a provincial-level administrative region, municipality directly under the Central Government, national central city and megacity of People's Republic of China (PRC), and is the economic center of the Bohai Rim region determined by the State Council.