The Macau Special Administrative Region,commonly known as Macau or Macao, is one of the two special administrative regions of the People's Republic of China, the other being Hong Kong. Macau lies on the western side of the Pearl River Delta, bordering Guangdong province in the north and facing the South China Sea in the east and south. The territory has thriving industries such as textiles, electronics and toys, and a notable tourist industry. This makes it one of the richest cities in the world.[