A casino, also known as a gambling house, is an establishment for certain types of gambling. In the United States, casinos are most often located in cities with large populations, such as Las Vegas and Atlantic City. In some cases, they are associated with luxury hotels, restaurants, retail shops, and other tourist attractions. In addition to gambling, some casinos host live entertainment events such as concerts and sports matches.
A number of different games are played in casinos, including dice, cards, roulette, baccarat, and video poker. Most of these games have mathematically determined odds that ensure the house has a constant advantage over players. This advantage is known as the house edge. Some casinos offer complimentary items to gamblers, known as comps, while others charge a percentage of each bet made by a player to cover operating expenses. The percentage charged is called the rake.
Casinos have security measures in place to deter cheating and theft. Security cameras located throughout the casino, along with staff members who are trained to detect suspicious behavior, help protect patrons. In addition, many casinos have special rooms, separate from the main floor, where high-stakes gamblers can place bets of tens of thousands of dollars. These rooms are monitored by casino security personnel who can see the gamblers through one-way glass.
In the twentieth century, most casinos focused on providing luxurious amenities and services to attract the highest-spending customers. They offered a variety of perks, such as free hotel rooms, meals, shows, and even private jets to airports in major cities. These perks attracted wealthy patrons, especially women over forty who had more time and money to spend than younger adults.