Tassili N'Ajjer National Park is a World Heritage Site in the Algerian Sahara desert. The plateau is a magnificent "lunar" landscape of sandstone forests, canyons and lakes and is twice the size of Switzerland.
The amazing variety of animals and plants in the middle of the desert led the park to be designated as a World Heritage Site, based not only on its cultural value but because of its importance for the natural world.
From moufflons to rare species of fish, plants and reptiles, the Tassili National Park is also home to a threatened mammal at the top of the food chain - the cheetah.
The park's director Mr Salah Amorkane talks about Tassili and its unique fauna.