Tassili n'Ajjer is a mountain range in the Algerian part of the Sahara Desert. It is a vast plateau in south-east Algeria at the borders of Libya and Niger.
Located in a strange lunar landscape, this site has one of the most important groupings of prehistoric cave art in the world. More than 15,000 drawings and engravings record the climatic changes, the animal migrations and the evolution of human life on the edge of the Sahara from 6000 BC to the first centuries of the present era.
Mosques in Algeria, Al Atiq Mosque - Ghardaia