Beijing, formerly romanized as Peking, is the capital of the People's Republic of China, the world's third most populous city proper, and most populous capital city. The city, located in northern China, is governed as a municipality under the direct administration of the central government with 16 urban, suburban, and rural districts. Beijing Municipality is surrounded by Hebei Province with the exception of neighboring Tianjin Municipality to the southeast; together, the three divisions form the Jingjinji metropolitan region and the national capital region of China.