A casino, also known as a gambling house or a gaming palace, is an establishment for certain types of gambling. Casinos are often combined with hotels, restaurants, retail shops and other tourist attractions. Some casinos are owned by governments, while others are privately operated. The legal age for gambling at a casino varies by jurisdiction, with most states having a minimum age of 21.

Something about the presence of large amounts of money in a casino encourages people to cheat and steal, either in collusion or independently. This is why casinos spend so much time, effort and money on security. For example, many modern casinos have cameras that monitor every table, slot machine and change window. Elaborate surveillance systems offer a high-tech eye-in-the-sky, with security personnel monitoring and adjusting the cameras as needed. Some casinos use “chip tracking” that allows them to know exactly how much is wagered on each table at any given moment. Roulette wheels are monitored electronically to detect any statistical deviations from their expected outcomes.

A casino may also earn money through a rake, a percentage of each bet placed by players in poker games or at baccarat tables. A casino may also make money by charging for admission, renting space to non-gambling businesses or hosting events such as concerts and sports contests. In addition, the casinos are a major source of employment in many areas around them.