A casino, also known as a gaming house or a gambling establishment, is a place where people can gamble and play various games of chance. It is most commonly associated with the city of Monte Carlo in Monaco, but there are casinos located around the world. These establishments offer a wide variety of gaming options, including poker, blackjack, and roulette. Some even have restaurants, spas, and entertainment. They are also known for their large jackpots, which can sometimes reach millions of dollars.

There is a significant amount of money handled in a casino, and both patrons and staff may be tempted to steal, either in collusion or independently; for this reason, security measures are usually very tight. Most modern casinos use a combination of electronic and physical security measures, such as surveillance cameras and the use of standardized betting chips. Some casinos are very large, and they can have a huge impact on local economy and employment.

Some of the most iconic casinos in the world are also some of the most luxurious, offering opulent suites and fine dining alongside the usual roulette wheel and blackjack table. From the historic elegance of the Casino de Monte-Carlo to the modern opulence of the Venetian Macau, these casinos are the pinnacle of both luxury and gambling.