A casino is an establishment for certain types of gambling. Modern casinos often combine gaming facilities with hotels, restaurants and non-gambling entertainment attractions such as bars and spas. They may be located in scenic areas such as Las Vegas, the capital of Nevada, or in historic cities such as Baden-Baden in Germany. Casinos often have a wide variety of table games, slot machines and video poker. In addition, they offer a variety of other games such as keno and bingo. Many casinos also host live entertainment, such as comedy shows, concerts and sports events.

A large percentage of the money that is wagered at a casino is won by the house, which makes its profits through various methods such as a rake in games like poker or by taking a commission on bets placed on machines. In addition to a physical security force, most casinos employ a specialized surveillance department which uses cameras and other technology to monitor the activities of patrons. In addition to the cameras, some casinos have catwalks in the ceiling above the gaming tables which allow surveillance personnel to look down through one-way glass on game play.

Casinos make most of their profit from gambling, and the games themselves include many that rely on chance as well as those that require skill. The most popular casino games are slots, blackjack, and baccarat. While other games such as craps, keno and roulette are also played, these four earn the majority of the billions in revenue that casinos rake in each year.