At the close of the 20th century, it was the most populated North American city founded within that century (a similar distinction was earned by Chicago in the 19th century).

Las Vegas was settled in 1905 and officially incorporated in 1911. The city's tolerance for numerous forms of adult entertainment earned it the nickname ' Sin City', and has made Las Vegas a popular setting for literature, films, television programs, and music videos. Las Vegas annually ranks as one of the world's most visited tourist destinations. for business conventions and a global leader in the hospitality industry, claiming more AAA Five Diamond hotels than any other city in the world.

It is a top-three destination in the U.S. With over 2.9 million visitors as of 2019, Las Vegas is the sixth-most visited city in the U.S., after New York City, Miami, Los Angeles, Orlando, and San Francisco. The city bills itself as the Entertainment Capital of the World, and is famous for its luxurious and extremely large casino-hotels. The Las Vegas Valley as a whole serves as the leading financial, commercial, and cultural center for Nevada.

Las Vegas is an internationally renowned major resort city, known primarily for its gambling, shopping, fine dining, entertainment, and nightlife, with most venues centered on downtown Las Vegas and more to the Las Vegas Strip just outside city limits. The Las Vegas Valley metropolitan area is the largest within the greater Mojave Desert, and 2nd-largest in the Southwestern United States. Las Vegas ( US: / l ɑː s ˈ v eɪ ɡ ə s/ from Spanish las vegas 'the meadows'), often known simply as Vegas, is the 25th-most populous city in the United States, the most populous city in the state of Nevada, and the county seat of Clark County.

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