A casino is a facility where people can gamble. Gambling has been a part of human culture for millennia, with evidence of dice from 2300 BC and of playing cards in 500 AD. Modern casinos specialize in gambling, entertainment, and food. Some are located in major cities while others are in rural areas. Most casinos have a variety of games, such as slot machines and table games, that are operated by live dealers. A casino also can host non-gambling activities, such as concerts and shows.

There are three general categories of casino games: gaming machines, table games, and random number games. Gaming machines are operated by electronic devices and do not require the involvement of a croupier or dealer. Table games, such as blackjack, poker, and baccarat, involve one or more players competing against the house (the casino). These games are often conducted by live croupiers and require the use of physical cards. Random number games are based on the selection of random numbers by a computerized random-number generator or by other means.

Historically, the largest casinos have been in the United States. The city of Las Vegas has been a major center for casino gambling since its inception, and the city’s economy is largely dependent on it. Some smaller cities have become known for their casinos, including Atlantic City, New Jersey, and Chicago.