A woman stands in front of a shrine during the Osun Osogbo festival in Osogbo, southwest Nigeria August 24, 2012. Thousands of worshippers gather around the sacred grove of Osun, listed as a UNESCO World Heritage site in 2005, to pray to the river goddess Osun during the annual cultural festival. Picture taken August 24, 2012. REUTERS/Akintunde Akinleye (NIGERIA - Tags: SOCIETY RELIGION)