Burning Man: A festival 'from another planet'
2 September 2011 Last updated at 12:48 BST
Ten of thousands of 'burners' are gathering in Nevada's Black Rock Desert in the US to celebrate the 25th anniversary of the Burning Man festival.
This year the desert-based event could be even wilder than usual seeing all sort of creations - from aliens to wind surfing.
And for the first time in its history, it has sold out.
Trystan Young reports.