"Eye of the Sahara" in Mauritania
This spectacular view is found in Mauritania in the south-western Sahara and it is called the Richat structure. It is not just a structure, but rather a huge circular formation (50 km in diameter), which account an eye when seen from space.
If initially thought that the massive crater was created by a meteorite impact, scientists have been puzzled by foma pay "bottom" crater, unexplained. Ultimately, concluded that the formation is, ...