A casino is a building or room in which people can gamble. Gambling is legal in some jurisdictions and prohibited in others. Depending on the game, customers bet cash or other items of value on various events that may occur during a particular session. The outcome of the bet is determined by chance or skill, with the house usually having a mathematical advantage over the players.

In modern casinos, the security of players and assets is a high priority. Many have a dedicated security force and specialized surveillance departments. The latter often use cameras with one way glass to allow security staff to look down on table games, slot machines, and other gaming activities.

Casinos can be found in many places worldwide, including Monte Carlo, Monaco; Lisbon, Portugal; and Baden-Baden, Germany. They are known for their glamour, entertainment, and luxurious accommodations. A number of them have also been featured in movies and TV shows, adding to their popularity.

The largest casino in the world is the Venetian Macao in Macau, East Asia. It has over 550,000 square feet of space and offers a multitude of gaming options, such as blackjack, roulette, poker, and video slots. The casino is surrounded by luxury hotels, spas, restaurants, bars, and other forms of entertainment, making it a major tourist attraction. Its vast size and unique architecture make it a standout feature of the city. Its façade is covered with over a million LED lights, creating a spectacle that rivals the famed dancing fountains of Las Vegas.