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REUTERS PICTURES OF THE YEAR 2016

FILE PHOTO - Participants dance and climb on an art installation as approximately 70,000 people from all over the world gather for the 30th annual Burning Man arts and music festival in the Black Rock Desert of Nevada, U.S. August 31, 2016. REUTERS/Jim Urquhart/File Photo FOR USE WITH BURNING MAN RELATED REPORTING ONLY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. NO THIRD PARTY SALES. NOT FOR USE BY REUTERS THIRD PARTY DISTRIBUTORS REUTERS PICTURES OF THE YEAR 2016 - SEARCH 'POY 2016' TO FIND ALL IMAGES

Burning Man festival

This year marks the 25th anniversary of the festival, which takes its name from the ceremonial torching of a giant wooden effigy. The event began modestly in 1986, when a handful of friends torched an 8-foot (2.4-m) wooden man on a San Francisco beach.