A casino is a facility where people can gamble by playing games of chance or skill, and in some cases both. Casino games generally have mathematically determined odds that ensure the house has an advantage over players, a difference in expected value known as the house edge. The house may also impose commissions on players in certain games such as poker, taking a cut of the pot known as the rake. The casino may additionally offer comps, or complimentary items, to players.

Modern casinos typically have two security departments: a physical force that patrols the casino floor, and a specialized surveillance department that operates the closed circuit television system known as the eye in the sky. They work closely together, and both departments have been quite successful at preventing crime within the facilities.

The Bellagio Casino in Las Vegas, for example, is one of the largest and most luxurious gambling establishments in the world. It houses more than 2,300 slot machines, plus blackjack, roulette, craps, baccarat, and a variety of other table games. In addition, it has a large number of top-billed entertainers performing live shows, from high-flying circus acts to the latest musicians topping the Billboard charts.

In the age of digitalization, many casinos have moved online, bringing their services straight to customers’ homes and mobile devices. To ensure a legitimate casino online, look for licensing information in the footer of the site, or check out independent reviews and user feedback. Licensed casinos are required to follow rigorous standards for fair play and player safety.