A casino is a gambling establishment that offers the excitement of winning and the chance to lose. The bright lights, loud sounds and stimulating environments have been shown to encourage risk-taking behavior by distracting players from thinking about the consequences of their actions. Casinos also offer a variety of entertainment shows and restaurants. Some casinos are renowned for their luxurious accommodations and high-end shopping.

Gambling, in all its forms, has been part of human culture for millennia. Evidence of games of chance has been found in China and Rome, and there are many ancient and medieval documents that refer to gambling. In modern times, casino gaming is regulated by state and national laws. It is a form of entertainment that can be enjoyed by anyone who is of legal age and has the necessary capital to make a bet.

Despite the large amounts of money handled by casinos, security is a key issue. Both patrons and staff may be tempted to cheat or steal, either in collusion or independently; therefore, casinos have extensive security measures. These usually include a physical security force and a specialized department for surveillance.

Most casino games are games of chance, with some requiring skill. In games with an element of skill, such as blackjack or baccarat, the house has a mathematical advantage over the players, which can be reduced by learning basic strategy. Casinos earn money by charging a commission on these games, which is known as the rake.