A casino is an establishment for gambling, typically combined with hotels, restaurants, shopping centers, and entertainment venues. The large and glamorous casinos of Las Vegas are known around the world, but there are also smaller and less opulent ones. Some casinos are owned by the cities in which they are located, while others are operated by private corporations or by Native American tribes. Still other casinos are found on cruise ships, at racetracks, and in bars and restaurants. Some states have legalized some types of casino-type games, while others have banned them.

Regardless of their size, most casinos are governed by strict rules and regulations designed to prevent cheating or theft. Security cameras are usually strategically placed throughout the facility and can be monitored from a central control room. Many casinos also offer a wide variety of gambling machines, including blackjack, roulette, and craps. Other popular games include poker and baccarat, both of which are played at tables as well as on video screens.

Casinos attract gamblers from all over the world and bring in billions of dollars in profit each year for their owners, investors, and employees. But the industry has a dark side, as shown by recent investigations of crime rings in Nevada. Some casinos are owned by organized crime groups, and mafia figures have made millions from their investments in casinos. Casinos often make their money by taking a percentage of each bet, or by charging an hourly fee to patrons who use slot machines.