Casino – A gambling establishment that offers a variety of games for public play and also provides high-level customer service. Casinos usually feature a large selection of slot machines and table games. They may also offer sports betting, shows and other entertainment. They are located in a wide range of places and can be found worldwide.

The precise origins of gambling are unknown, but it is clear that it has long been popular in most societies. It can be traced back to the earliest recorded games, such as primitive prototype dice and carved knuckle bones. The modern casino originated in the 16th century, when a gambling craze swept Europe and wealthy Italian aristocrats gathered in private clubs known as ridotti to gamble and socialize.

In the United States, over 51 million people visited a casino in 2002, making it one of the most popular forms of recreational entertainment. Casinos are legally licensed and regulated, and are required to provide a variety of consumer protection measures. Many casinos use sophisticated security systems, including cameras that monitor every facet of the casino. Some even have catwalks in the ceiling, allowing surveillance personnel to look down through one-way glass on patrons at specific tables and slot machines.

Most casinos are staffed by people who are trained to recognize cheating and stealing, both in collusion with other players or independently. The large amounts of money that are handled within casinos make them a target for criminal activity, and they must therefore spend a significant amount of time and money on security.