A casino is a gambling establishment that offers various gambling activities. It is a popular form of entertainment and has become a worldwide phenomenon. Casinos are most often found in Las Vegas, Macau and Atlantic City but they also can be found in other cities around the world. Those who are not interested in gambling may enjoy other casino features such as food, drinks and entertainment.

Most casinos offer a variety of gambling games such as poker, blackjack, roulette and slot machines. The games are often controlled by a dealer, but some casinos have a player-dealt version of the game where players make their own bets and interact with each other. Some casinos also offer Asian games, primarily sic bo (which spread to several European and American casinos during the 1990s) and fan-tan.

Because large amounts of money are handled within casinos, both patrons and staff may be tempted to cheat or steal, either in collusion or independently. To discourage such activity, most casinos have security measures in place. These measures vary from manned guard posts to video surveillance systems.

Many people gamble because they want to have fun and win money, but it is important to remember that gambling is not a profitable way to make money. Before entering a casino, players should decide how much they are willing to lose and set limits for themselves. They should not spend more than they can afford to lose and should never borrow money to play in a casino.