A casino (also known as a gambling house) is an establishment offering certain types of gambling. The games usually available in casinos include poker, baccarat, blackjack, roulette, craps, and slot machines. A casino can also feature other entertainment such as shows and concerts. Casinos can also be found in some resorts and cruise ships. Some casinos are located in countries with legalized gambling, while others operate under strict government supervision.
While some casino games involve an element of skill, most of them rely on chance and mathematical certainty to give the house a predictable advantage over the players. This advantage is sometimes referred to as the house edge, and while skilled play can reduce it slightly, it is always present. Some casino games are designed to take advantage of player skill, however, and these games are generally considered fairer by gamblers.
Many modern casinos have become more complex and sophisticated, using technology to monitor and control the games. For example, electronic chips allow casino employees to track the exact amount wagered minute-by-minute, and roulette wheels are electronically monitored for statistical deviations. Casinos have also greatly increased their use of surveillance cameras to ensure that rules are followed and patrons are treated fairly.
A casino can be a world unto itself, with luxurious suites, spas and celebrity restaurants all contained within its walls. The Venetian, for example, is a small slice of Italy in the heart of Las Vegas where visitors can glide down the Grand Canal on a gondola or gamble at tables adorned with hand-painted frescoes.