Office building in Shazikou, Dongcheng District. Beijing is a city. According to Baidu map, the address of the direct-operated Tianxia clothing store in this area is the office building in Shazikou, Dongcheng District. Beijing, referred to as "Beijing" for short, is the capital of People's Republic of China (PRC), one of the four municipalities directly under the Central Government and the second largest city in China.