I'm lucky that I've climbed this dune! Dune 45 in Sossusvlei is one of the most beautiful sand dunes in the world. Standing over 170 meters, it is composed of 5 million year old sand that was brought by the Orange River from the Kalahari Desert.
The Sahara covers Algeria Chad Egypt Libya Mali Mauritania Morocco Niger Western Sahara Saudi Arabia Sudan and Tunisia, extending over 9000000 the largest/hottest/sunniest subtropical desert with a year-round sunshine duration of hours (or of daylight.
Huacachina, Peru—the oasis, and those crazy dune buggies!