A casino (or casino resort or gambling house) is a place where people can gamble and play games of chance. Casinos are often built near or combined with hotels, restaurants, retail shops and other tourist attractions. Some casinos are open 24 hours, while others have a more limited operating schedule. The largest casinos in the world are in Las Vegas, which feature large rooms full of slot machines and table games. Some of these facilities also offer a variety of other entertainment options, such as theaters and live music.

Most casino games involve some element of skill, and the house always has a mathematical advantage over players. Because of this, it is very rare for a casino to lose money on a given day. For this reason, casinos are able to offer their customers extravagant inducements to gamble, such as free or reduced-fare transportation, hotel rooms and luxury suites, and comped food and drinks while gambling.

Casinos can be found all over the world, and they are an important source of revenue for many nations. Most countries regulate the operation of casinos to some extent. In the United States, gambling was legalized in Atlantic City in 1978, and during the 1980s several American Indian reservations amended their laws to allow casinos.

While most people think of Las Vegas when they hear the word casino, there are a number of other notable casinos. The Bellagio is one of the most famous, and its dancing fountains are known around the world. The casino is part of a luxurious resort that includes high-end hotels and spas.