A casino is a place where people gamble by playing games of chance or skill. The most common casino games are poker, blackjack, roulette, and craps. In addition to these, many casinos offer other forms of entertainment such as theaters and live music. Some even have high-end restaurants, luxury hotels, and spas. The most famous casinos in the world are located in Las Vegas, Nevada. But there are also several in Europe, such as the elegant Casino Baden-Baden in Germany. It first became a playground for European royalty and aristocracy 150 years ago, but now it attracts more diverse visitors. Its stylish poker rooms, black-and-gold table games, and 130 slot machines are renowned throughout the world. The casino also offers sports betting on American football, boxing, and martial arts.
In modern casinos, security is divided between a physical force that patrols the property and a specialized department that operates a closed circuit television system known as “the eye in the sky.” Some casinos also have catwalks suspended above the floor that allow surveillance personnel to look directly down, through one-way glass, on the activities at tables and slot machines. In this way, surveillance is able to spot statistical deviations from expected results quickly.
In addition to these technological measures, casinos enforce security through rules of conduct and behavior. Players at card games are required to keep their hands visible at all times, for example. In this way, the casino is able to ensure that no concealed cards are being played.