Tadrart Acacus 's a desert area in western Libya and's part of the Sahara. It's situated close to the Libyan city of Ghat. Tadrart means 'mountain' in the native language of the area (Tamahaq language). It's a particularly rich array of prehistoric rock art. 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's one of the most arid of the Sahara,… (More on Akakus)