Tadrart Rouge
Tadrart Rouge in Algeria is by some considered to be the most beautiful desert in the world. I have not been to all the deserts of the world (yet) but I can definitely confirm that it is amazing.
Tadrart Rouge, Sahara, Algieria
OLYMPUS M.12-100mm F4.0
12mm ƒ/7.1 1/640 ISO 200