Libya
Tadrart Acacusmountain rangePhoto: Luca Galuzzi (Lucag) · CC BY-SA 2.5 · source
Jebel Nafusamountain rangePhoto: Trtoot · Public domain · source
Waw an NamusmountainPhoto: unnamed NASA astronaut · Public domain · source
Ubari Sand SealandscapePhoto: Luca Galuzzi (Lucag) · CC BY-SA 2.5 · source
Sunset on the Wan Caza dunesSunsetPhoto: Luca Galuzzi (Lucag) · CC BY-SA 2.5 · source