Oyo Labyrinth – The Ennedi Plateau, Chad
https://www.newscientist.com/article/2077342-secret-sahara-reveals-fairytale-formations-and-ancient-lakes/
Oyo Labyrinth – The Ennedi Plateau, Chad
https://www.newscientist.com/article/2077342-secret-sahara-reveals-fairytale-formations-and-ancient-lakes/