A casino (also called a gambling house or a gaming room) is an establishment where people can gamble on various types of random events. These events can include the outcome of a roll or dice, a card game, a keno race, or an electronic gaming machine. Casinos can be found in many countries around the world. Some casinos are stand-alone buildings while others are combined with hotels, resorts, restaurants, retail shops, cruise ships, or other tourist attractions. Casinos are also known for hosting live entertainment, such as stand-up comedy, concerts, and sports events.

According to a 2005 report by Harrah’s Entertainment, the typical casino patron is a forty-six-year-old female from a household earning above average income. Participation in casino gambling declines with decreasing income, however.

Despite the large amounts of money involved, casino gambling is not without risk. Casino staff and patrons may attempt to cheat or steal, either in collusion or independently; therefore, most casinos have security measures in place. These measures can include cameras, the use of a uniformed security guard on every floor, and strict rules of conduct and behavior.

Casinos are designed around noise and light, and the atmosphere is meant to be exciting and stimulating. Waiters circulate to provide drinks and snacks, and players often shout encouragement to each other. The color red is often used in casino decoration, because it is believed to stimulate the appetite and increase gambling revenue. In addition, clocks are not displayed on casino walls, as they are considered to be a distraction.