A casino is a place where people pay to play games of chance or skill, usually for money. The gambling industry generates billions of dollars a year for the companies, investors, and Native American tribes that own and operate casinos.

Most casinos feature a wide variety of gaming tables and slot machines as well as live entertainment, top-notch hotels, spas, and restaurants. The Bellagio in Las Vegas, for instance, first gained fame for its fountain show but now offers a full range of table games and a sophisticated poker room. It also has state-of-the-art facilities for sports betting.

Casinos make most of their profit from high-stakes gamblers, who spend more than the average bettor. To attract and retain such players, they offer comps—free items such as food and drinks—and other perks like reduced-fare transportation and hotel rooms. In some cases, these inducements are worth tens of thousands of dollars, and the most affluent patrons receive free luxury suites.

Casinos employ numerous security measures to prevent cheating and theft by both patrons and staff. Video cameras monitor activities throughout the facility, and employees are trained to detect suspicious activity. Security personnel also have a bird’s-eye view of the floor from catwalks above the tables, allowing them to keep an eye on the action. In addition, many casinos use bright colors such as red to stimulate the senses and distract gamblers from their losses. In the United States, casinos are regulated by state governments and/or tribal entities.