中國大陸, or Mainland China, refers to the part of China that is governed by the People's Republic of China (PRC). It includes 23 provinces, five autonomous regions, four direct-controlled municipalities, and two Special Administrative Regions, namely 香港 (Hong Kong) and 澳門 (Macau). The capital city is 北京 (Beijing), which is also the political and cultural center of the country. Mainland China has a diverse landscape that includes mountains, rivers, and plains. It is home to a large population, making it the most populous country in the world. The economy of Mainland China is one of the largest globally, driven by manufacturing, technology, and agriculture.