A casino is a place where people can gamble by betting cash or other items of value. It is a popular form of entertainment and can be found in most countries where gambling is legal. Casino games are a combination of chance and skill. The most common games are poker, blackjack, roulette, and craps. Other popular games include bingo and video poker.

There are various security measures in place to prevent cheating or theft by patrons or employees. Many casinos have cameras throughout the facility and use them to monitor activities in real time. Some even have catwalks in the ceiling that allow surveillance personnel to look directly down, through one way glass, on the activities at tables and slot machines. Some casinos also have rules of conduct and behavior that must be followed by players.

In the United States, casinos are primarily regulated and audited by state governments. They are often owned and operated by private businesses or tribes. A few are public casinos, most notably in Las Vegas and Atlantic City. Privately owned casinos typically operate under a license granted by the state. Government-regulated casinos are overseen by a gaming commission, which ensures that the casino is following all laws regarding gambling.

While the precise origin of gambling is unknown, it has long been an integral part of human culture. Evidence of gambling has been found in ancient Mesopotamia, medieval Europe, and Elizabethan England. Today, casinos continue to provide a source of entertainment and economic growth around the world.