A casino is an establishment for certain types of gambling. These casinos are often combined with hotels, resorts, restaurants, retail shops, and other tourist attractions. They can also offer live entertainment, such as music performances or stand-up comedy. The term can also refer to the actual building or room where the gambling takes place.

In the 21st century casinos have become a significant part of the hospitality industry and are found worldwide. Many cities around the world have casinos and many countries have changed their laws to permit them.

The United States leads the world with the most casinos, but the most famous one is probably the Casino de Monte-Carlo in Monaco, which opened in 1863. Its reputation for glamour and exclusivity has attracted celebrities, royalty, and other notable persons.

Modern casinos have a variety of security measures, including video surveillance and other electronic monitoring systems. They also have rules and regulations for player behavior, and they enforce these through a combination of cameras and human inspectors.

Most casinos offer several popular card games, with baccarat (or chemin de fer in the United Kingdom and European continental casinos that cater to British patrons) and blackjack being particularly common. They may also have roulette and other table games such as craps, and some casinos have video poker machines. Many American casinos also host regular poker tournaments, and earn a profit from these by taking a percentage of each pot or charging an hourly fee.