A casino is a gambling establishment that offers a variety of gaming options. These include table games, slot machines, poker rooms and more. In addition, some casinos offer top-notch hotels, spas and restaurants. Some even feature live entertainment and other amenities. In the United States, casinos are regulated by state law.

A casino makes money by charging players a percentage of their total bets. This edge, called the vig, can be small but over time it adds up. Casinos also gain revenue from comping, or offering free goods and services, to “good” players. This can include free hotel rooms, dinners, shows and even limo service.

Casinos were first introduced in Nevada, where they became popular among vacationers. In the 1980s they began to appear on American Indian reservations, which are not subject to state antigambling statutes. Today, there are more than 3,000 legal casinos around the world.

The most famous casino in the world is the Bellagio in Las Vegas. Its dancing fountains and high-end dining have made it a tourist destination. But the casino’s elegant architecture and vast selection of games make it a top choice for serious gamblers as well.