Nigeria's Osun-Osogbo Sacred Grove, one of the last remnants of primary high forest in southern Nigeria, was inscribed on UNESCO's World Heritage List in 2005. This inscription was the culmination of a 50-year campaign spearheaded by a group of artists, Yoruba priests and an Austrian artist called Susanne Wenger. Pierre Guicheney's film La dame d'Oshogbo is a portrait of ...