A casino is an establishment that allows patrons to gamble. The patrons can place bets on games of chance or skill, such as roulette, blackjack, baccarat, poker and slot machines. Some casinos also offer entertainment and other amenities, such as fine dining and shows. Most casinos employ security measures to prevent cheating and stealing, either in collusion with other patrons or by employees. These security measures vary, but may include video surveillance systems and other technological methods.

Most casino games have mathematically determined odds, which give the house an advantage over the players. This advantage is usually referred to as the house edge. In games where patrons play against each other, such as poker or blackjack, the casino makes its profit by taking a percentage of the total bet, or rake. The mathematicians and computer programmers that calculate these probabilities are known as gaming mathematicians or gaming analysts.

Several countries have legalized casino gambling. In the United States, many states have a state-run casino or an Indian gaming facility. Other countries allow private businesses to operate casinos. Casinos can be found in Las Vegas, Atlantic City and other major cities. They can also be built near or combined with hotels, resorts and other attractions.

Mohegan Sun, a popular tourist destination in Connecticut, boasts two casinos with distinct themes and atmospheres, including the Earth and Sky Casinos. The latter is more modern and features a futuristic vibe. The former, on the other hand, has a more traditional theme and is reminiscent of old Las Vegas. It has over 300,000 square feet of gaming space, including table games, sports betting and slot machines.