ancient rock engravings in twyfelfontein, damaraland, namibia.

africa african ancient animal archaeological archeology art bushman bushmen carve carving civilization creativity culture damaraland drawing engrave engraved engraving engravings foot giraffe granite heritage hieroglyph historic historical history horizontal illustration landmark namibia native nature old painting past pattern petroglyph prehistoric red rock sandstone site stone texture traditional travel twyfelfontein unesco wilderness world