Macau

Macau was under Portuguese rule before being handed over to China in 1999 and now a Special Administrative Region. In recent years it has become one of the richest cities and also the worlds largest gambling center. Much of its economy relies on gambling for its revenue. Many people from the mainland of China visit Macau every year to gamble because gambling isn't permitted in China. It attracts around 6x more people than Las Vegas does annually. Because Macau relies so much on its tourist for revenue because of its casinos, if casinos were to be allowed in China, Macau would be in trouble. If their casino industry goes down, it might bring down all of Macau. It is known as the Chinese Las Vegas.