Credit: Luca Galuzzi
Tadrart Acacus (Arabic: تدرارت أكاكوس) is a desert area in western Libya and is part of the Sahara. It is situated close to the Libyan city of Ghat. Tadrart means 'mountain' in the native language of the area (Tamahaq language). The Acacus has a large variation of landscapes, from differently coloured sanddunes to arches, gorges, rocks and mountains. Major landmarks are the arches of Afzejare and Tin Khlega. Although this area is one of the most arid of the Sahara, there is vegetation, such as the callotropis plant. The area is known for its rock-art and was inscribed as a UNESCO World Heritage Site in 1985 because of the importance of these paintings and carvings.