More than 50,000 people from all over the world have gathered at the 25th edition of the sold-out festival called Burning Man 2011 “Rites of Passage”. - Photos by Reuters A participant looks at an art installation during the Burning Man 2011 ?Rites of Passage? arts and music festival in the Black Rock desert of Nevada, August 31, 2011. Participants ride in an art car during the festival. A participant during the festival. Participants are sprayed with water to cool down in the heat, as they dance at the ?Distrikt? sound and music camp. A participant looks at the effigy made in the form of a man, to be burned. A participant dressed as a bear rides a bicycle. Participants chant together inside ?The Temple of Transition?. A participant performs acrobatics on aerial silks. A participant is seen during the festival. A participant looks at an art project.