Casino is a place where people gamble and play games of chance. It may be lavishly decorated and offer free food and drinks, but it is primarily a gambling establishment. Casinos offer a variety of gambling opportunities, from slot machines to table games such as blackjack and roulette. Some casinos also have a show or other entertainment.
Gambling has long been an integral part of civilization. The precise origins are unknown, but the ancient Mesopotamian game astragali and carved six-sided dice from medieval times suggest an early history of chance-based entertainment. Modern casinos often feature a wide range of games, including poker, blackjack, craps, roulette, and video poker. Some even have restaurants and luxury hotel rooms.
Because of the large amount of cash handled in a casino, security is a major concern. Patrons and staff may be tempted to cheat or steal, either in collusion with other players or independently; thus, many casinos have extensive security measures. Security cameras are the most basic element, but casinos also have a team of detectives and other employees whose job is to investigate any suspicious activities.
Casinos have a number of ways to keep their patrons happy, from free food and drink to stage shows and dramatic scenery. They also reward high-volume spenders with comps, such as free hotel rooms and dinners. The exact rules for earning comps vary by casino, but they are generally based on the amount of money you bet and how long you play.