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BLACK ROCK CITY, NV - SEPTEMBER 2: An aerial view at dawn of the west side of Black Rock City, Nevada on September 2, 2005. The city exists for one week a year to host the Burning Man festival. During its one week a year existence, Black Rock City becomes the seventh largest city in Nevada with a population of nearly 30,000; it's own zip code and a volunteer-operated U.S. Postal Service. (Photo by, Jonathan Kingston/Aurora)