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Las Vegas from WikiPedia:

The Las Vegas metropolitan area, also known as the Las Vegas-Paradise-Henderson Metropolitan Statistical Area, is a metropolitan area in the southern part of the U.S. state of Nevada, consisting of Clark County. A central part of the metropolitan area is the Las Vegas Valley, a 600 sq mi (1,600 km2) basin in which is located the metropolitan area's largest city, Las Vegas. The area contains the largest concentration of people in the state. The history of the Las Vegas metropolitan area largely coincides with the history of the city of Las Vegas, whose name is sometimes used to denominate the entire region. The metropolitan area's population was estimated at 1,836,333 in 2007.

Outdoor lighting displays are everywhere on the many tourist destination buildings in the area. As seen from space, Las Vegas is the brightest city on earth.

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