bushman engravings in the granite rock, twyfelfontein unesco world heritage site, kunene region, damaraland, namibia

africa african age ancient antelope archeology art background bushman bygone culture damaraland desert drawing dry early engraving giraffe granite heritage history horizontal landmark lion mountain namibia namibian natural nature old painting pattern prehistoric primitive red rock san sandstone site snake stone texture travel twyfelfontain twyfelfontaine twyfelfontein unesco wall wild wildlife