The Atlantic coast of the Sahara is just hopelessly desolate. Elsewhere cities are clearly visible gray splotches but here there's so much sand they blend into the surrounding deserts. On Nouakchott the city center is gray but the suburbs gradually fade away into the wasteland, as if they themselves were becoming part of the desert. On closer inspection the central neighborhoods also have a lot of sand but they have asphalt and it's dust-free aswell as trees.