Namibia, The Valley of Twyfelfontein

Twyfelfontein is a site of ancient rock engravings in the north-western Namibia. It consists of a spring in a valley flanked by the slopes of a sandstone table mountain. Ancient hunter-gatherers and herders used it as a place of worship and a site to conduct shamanist rituals. In the process of these rituals one of the largest concentrations of rock petroglyphs in Africa have been created.