Etchings on sandstone, 6000 years old, finest rock art in Africa, Twyfelfontein, Damaraland, Namibia, Africa

africa animals archaeological sites archaeology carved carvings color image contemporary damaraland day etchings horizontal namibia nobody outdoors photography prehistoric rock art sandstone travel travel destinations twyfelfontein african animal archaeological site archeological site archeology civilisation civilization color colour daytime namibian outside southern africa stone