lion plate with lion man and other bushman prehistoric rock engravings at twyfelfontein, namibia

carvings wall symbol twyfelfontaine hieroglyph twyfelfonteine carving native historic natural nature old texture archeology damaraland history painting african background granite wild prehistoric elephant bushman desert giraffe culture twyfelfontein stone namibia lion ancient heritage dry antelope art africa wildlife season drawing unesco mountain horizontal rock sandstone pattern engraving travel animal twyfelfontain plate man other engravings