A casino is a gambling establishment where patrons can wager money on games of chance. Most casinos offer a variety of table games such as blackjack, craps, roulette and baccarat. Some casinos also offer video poker and electronic games like slot machines. Some casinos feature live entertainment such as stand-up comedy, musical performances or concerts. Often a casino will pair an exotic location with its gaming offerings, such as the Casino de Monte Carlo on the Grand Canal in Venice or the City of Dreams resort in Macau which has a building designed by the late architect Zaha Hadid.

Casinos are a significant source of revenue in many countries and are a major contributor to tourism. They also generate substantial tax revenues for the states in which they operate. The gambling industry is regulated in most countries. In the United States, there are 40 states that have legalized casinos. The largest casinos are located in Las Vegas, Nevada.

A casino is a business that operates a gaming floor, offers services to players such as food and drink, and provides amenities such as hotel rooms. Casinos are most commonly built near or combined with hotels, restaurants, retail shops and/or other tourist attractions. Some casinos may be operated by a government body, such as a tribe or a municipality. Others are owned by private corporations or individuals. In the United States, most casinos are licensed and regulated by state governments. Casinos are typically designed to maximize gambling revenue and may be located in areas with high population density.