A casino is a gambling establishment offering a variety of games of chance and, in some cases, skill. Typically, players bet money or other valuables (or sometimes food) against each other or the house in games of chance such as poker, roulette, and blackjack; in games of skill such as craps, baccarat, and sports betting; or on slot machines. Casinos usually have security staff to prevent cheating and other misconduct, and they employ a variety of technological and other controls to ensure fair play.

There are about 1,000 casinos in the world, though new ones are constantly opening and old ones closing. A casino is also a place where people gather for social activities, and it can include restaurants, bars, and live entertainment.

The elegant spa town of Baden-Baden became a playground for European royalty and aristocracy 150 years ago, but today its casinos attract gamblers from all over the world. Its Belle Epoque buildings, red-and-gold poker rooms, and plethora of blackjack and roulette tables are among the most famous in the world.

A casino can also be a place where gamblers can try their luck at a variety of other games, including electronic bingo and pari-mutuel betting. However, most states have laws against minors playing or loitering near casinos, and some ban gaming altogether. In addition, some casinos are owned by investment banks.