a tourist poses for the camera next to the base of “the mushroom”, a characteristic rock formation of ennedi. chad.

abundant arches architecture area authentic badlands base beauty camera carved cave caves chad characteristic characteristics desert dessert eastern engravings ennedi erosion extraordinary formation formations forms found geological geology heritage human labyrinths landmark landscape large millennia monument mushroom north-eastern number paintings poses presence region rock ruins sahara sand sandstone sculpture site temple terrain testify tourist tourists unesco valley visit wadi world