Portuguese traders first settled in Macau in the 1550s. The Portuguese Empire was under Chinese authority and sovereignty until 1887, when Macau became a colony.
Sovereignty over Macau was transferred to China on 20 December 1999. Officially known as the Macao Special Administrative Region of the People's Republic of China. Macau and it is located on the western side of the Pearl River Delta. Macao is known for it's high-end casinos and hotels. In fact, Macau's casinos are every bit as luxurious the as the casinos in Las Vegas.