A casino is a place where people play gambling games. It can be a large building that houses several different types of gambling activities, or it may be an entire complex that contains a hotel and various entertainment venues. Casinos are often located in tourist destinations such as Las Vegas, Reno and Atlantic City, and they can also be found on American Indian reservations. They are often regulated by state gaming laws and many have strict rules about who can gamble there.

Gambling has been part of human culture for millennia, with evidence dating back to 2300 BC in China and even earlier in Europe, where dice and playing cards first made an appearance. Today, casinos still serve as a popular form of leisure activity, and the gambling industry contributes to local economies. In fact, studies have shown that counties with casinos see a sharp increase in employment opportunities, as well as higher property values and increased spending among residents.

There are a few places that are famous for their casinos, including Monte Carlo in Monaco and the New York-New York Hotel and Casino on the Strip in Las Vegas. The latter is especially known for its 1/3-scale replica of the Manhattan skyline and Statue of Liberty, as well as a full-sized roller coaster and the Sporting House, a bar and restaurant decked out with American sports memorabilia. While most people associate casinos with gambling, there are other reasons to visit one: for example, some research has suggested that casino games can help improve mental acuity by increasing focus and concentration.