Casino is a place where people come to gamble. The majority of the entertainment and profits for the owner comes from gambling games like blackjack, roulette, craps, keno, video poker, slot machines and more.

Gambling is a longstanding tradition, but casinos have taken it to the next level and become echelons of entertainment. Musical shows, lighted fountains and shopping centers help attract guests, but the true draw is the games of chance.

The modern casino is a huge business, with billions of dollars in profit raked in by U.S. casinos every year. But how did it all start?

It all started with a few real estate investors and hotel chains that realized they could make big money in gambling. They were able to buy the businesses that had been operated by mobsters who were well-connected in the drug business and extortion rackets.

Today, many casinos have evolved into luxury resorts with hotel rooms and prime dining facilities. They also host exclusive performances by top music stars, circus troops and stand-up comedians.

Some of the world’s most luxurious casinos have been designed by the finest architects and interior designers, including some that are inspired by baroque flourishes from palaces throughout Europe. The spa town of Baden-Baden, Germany, has a spectacular casino that draws aristocracy from across the continent.

Security is critical at casinos, so they employ elaborate surveillance systems that give the entire casino an “eye in the sky.” The system watches all the tables, changing windows and doorways to spot suspicious patrons. It also records and analyzes all the video feeds. If a crime or cheat is detected, the casino can review the tapes and track down the culprits.