They call it the Empty Quarter. A name that sounds like something out of an ancient tale, belonging more to legend than to geography.
The Rubʿ al-Khali is a vast expanse of sand. Its dunes stretch as far as the eye can see, some rising two hundred metres into the air. Look in any direction and there is no road, no building, no sign telling you: you are here.
After all, if the other three quarters of the world are made of air, water and earth, in this last quarter there seems to be nothing left.
Only sand.