Tassili n'Ajjer is a mountain range in the southern Algerian Sahara desert. The name Tassili n'Ajjer means "Plateau of the Rivers" in the local Tuareg language, and it is known for its stunning landscape of sandstone formations, deep canyons, and rock paintings that depict the life of the ancient Sahara inhabitants.

The Tassili n'Ajjer region has been inhabited for thousands of years, with evidence of human presence dating back to the Neolithic period. The area was an important trading hub for the Carthaginians and Romans due to its strategic location between the Mediterranean and Sub-Saharan Africa.

The most famous feature of the Tassili n'Ajjer region is its rock art. The rock paintings, which date back thousands of years, depict scenes of everyday life, including hunting, dancing, and religious ceremonies. They provide important insights into the lives and cultures of the people who lived in the Sahara during prehistoric times.

In addition to the rock art, Tassili n'Ajjer is home to a rich diversity of flora and fauna, including many rare and endangered species. The area was designated a national park in 1982 and is now a UNESCO World Heritage site.

Visitors to Tassili n'Ajjer can enjoy hiking, rock climbing, and camping in the stunning desert landscape. The region is also home to many traditional Berber villages, where visitors can experience the local culture and hospitality.