A casino, also known as a gaming house, is an establishment that offers gambling. Casinos are most often associated with hotels and resorts, or they may be standalone facilities. They offer a variety of games, such as blackjack, roulette, and poker. Many casinos also host live entertainment such as concerts and stand-up comedy. Some are operated by major corporations, while others are independent.

A modern casino is usually equipped with security measures and surveillance systems. These include cameras that monitor all areas of the casino floor, as well as systems for analyzing the behavior of players and employees. Casinos use these technologies to deter cheating and to ensure the integrity of the games.

In addition to security measures, casinos employ rules and regulations to prevent underage gambling and other forms of illegal activity. For example, in the United States, players must be at least 21 years old to gamble in a casino. In addition, players must sign a form saying they understand the odds of winning and losing, as well as agree to forfeit any money won if caught.

In the past, many European cities were famous for their casinos. Monte Carlo, for example, was a hub of high-society life and a major source of income for the principality of Monaco. The Bellagio in Las Vegas is another legendary casino, known for its elegance and sophistication. The opulent rooms and the list of celebrities who have played there (Frank Sinatra, Liberace, Elton John) make it a must-see for tourists.