A casino is a gambling establishment where a variety of games of chance are played. Although casinos feature luxuries such as restaurants, free drinks and stage shows to attract players, they are essentially places where people can risk money in exchange for winnings. While some games of chance require a degree of skill, the majority are purely games of chance that provide the billions in profits casinos rake in each year. Casinos can be found worldwide, with the United States having the largest concentration of them.

Modern casinos are like indoor amusement parks for adults, with the vast majority of their profits coming from games of chance such as slot machines, blackjack, roulette, baccarat and craps. In addition to the gambling games themselves, casinos offer a wide variety of other entertainment, such as musical shows, lighted fountains and shopping centers.

While the concept of a casino is quite new, gambling has long been a popular pastime. The first recorded instances of casino-like establishments date back to the 16th century, when a gambling craze swept Europe and aristocrats created private clubs for themselves known as ridotti. Although these clubs were technically illegal, the fact that they offered a variety of ways to gamble meant they remained unmolested by the authorities.

In more recent times, real estate investors and hotel chains realized the potential profits of converting mob-run casinos into legitimate businesses. By buying out the mob, they could run their casinos without fear of losing a gaming license at the slightest hint of Mafia involvement. Unfortunately, the growth of casinos also contributed to a rise in compulsive gambling among certain patrons. Studies show that the financial costs of treating problem gamblers more than offset any economic benefits that casinos might bring to a community.