Algeria, Sahara, Tassili N'Ajjer national park, Djanet, bile painting, 'crying cortexes' Africa, bile engravings, rock, engravings, bile engraving, stone relief subscriptions, culture, petroglyphs, place of interest

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Photo credit: © Adolf Martens / Alamy / Afripics
License: Licensed
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Keywords: ajjer, algeria, cultural, heritage, national, park, sahara, tassili, travel, unesco-world