Casino – A gambling establishment where patrons bet on games such as roulette, card games and slot machines. In many countries, casinos are regulated by law.
Security measures in casinos are often elaborate; cameras and other technologies detect suspicious behavior, and players must keep their cards visible at all times. However, the fact that a large amount of money is available can encourage people to cheat and steal.
The largest casino in the world is US-based WinStar World Casino, followed by two China-based casinos: The Venetian Macao & City of Dreams in Macau, China.
Casinos make money through a built-in advantage, called the house edge. This advantage is calculated based on the average odds of winning. It can be as small as two percent, but over time and millions of bets, it generates a lot of money for the casino.