A casino is a public place where games of chance are played. Gambling in casinos is a major source of revenue for the cities, states and countries in which they operate. Various types of gambling can be found in these establishments, including table games such as blackjack and poker, as well as slot machines and video poker. In addition to the games of chance, many casinos also offer a variety of other entertainment options, such as restaurants and live performances.

Casinos use a number of tactics to persuade people to gamble. They often provide drinks and snacks free of charge, as well as loud, energizing music and an atmosphere designed to increase the excitement of gambling. They may also offer perks to high-spending patrons, such as free shows or hotel rooms. These perks are known as comps.

Modern casinos employ elaborate security measures to protect their guests and property. They typically have a physical security force and a specialized surveillance department. The latter uses cameras to monitor the entire casino, allowing staff members to spot suspicious or definite criminal activity. They can even adjust the cameras to focus on specific tables or individual patrons.

Successful casinos bring in billions of dollars every year for the companies, investors, and Native American tribes that own them. They also generate substantial tax revenues for local governments. In the United States, casinos are most often located in Las Vegas and Atlantic City. However, they can also be found in many other locations, including racetracks and other venues that host racinos, as well as in bars, restaurants, and truck stops.