A casino, also called a gambling house or a gaming hall, is a place where people can play various games of chance for money. It is a popular tourist attraction, especially in cities with large numbers of people with disposable income and an interest in gambling.

The precise origin of gambling is unknown, but it has been a part of human culture for thousands of years. Modern casinos are usually large and luxurious, and offer a variety of entertainment and dining options. Most have electronic table games, where players bet with chips that contain a built-in microcircuit; these are overseen electronically to prevent cheating and to detect any unusual statistical deviations.

As a form of recreation, casino gambling has an almost mystical appeal. It involves noise, lights and other stimuli to create an enticing, celebratory atmosphere in which patrons can lose their inhibitions and indulge in their favorite vices. Often, gamblers are surrounded by other players or a crowd of onlookers. Alcoholic drinks are freely available, and casino floors are frequently decorated with bright and sometimes gaudy colors designed to stimulate and cheer the patrons.

Because of the large amounts of money that are handled within a casino, both patrons and staff may be tempted to cheat or steal, either in collusion or independently. For this reason, casinos spend a great deal of time and money on security measures. Many casinos have surveillance cameras throughout, and security personnel patrol the casino floor. In addition, some casinos offer perks to attract high rollers, such as free spectacular entertainment, discounted travel and luxury living quarters.