Eye of the Sahara called Richat Structure has a diameter of almost 50 kilometers (30 miles). Placed in Mauritania, officially the Islamic Republic of Mauritania is a country in northwest Africa. It is surrounded by the Atlantic Ocean on the west, by Senegal on the southwest, by Mali on the east and southeast, by Algeria on the northeast.

This spectacular landform in Mauritania in the southwestern part of the Sahara desert with a diameter of 30 miles huge and can be visible from the space. Called Richat Structure or the “Eye of the Sahara” the formation was originally thought to be caused by a meteorite impact but now geologists believe these features were formed by an uplift and subsequent erosion from wind and water. However, why the Richat Structure is circular remains a mystery.