PIX4658525: Tenerife - Tenerife, the largest island in the Canary Islands, seen from the international space station on 27/04/2016. The Teide Peak is a stratovolcano that reaches 3718 metres above sea level. But from its base under the sea it rises to 7500 metres, making it the third largest volcano in the world. Tenerife in the Canary Islands. Image taken from the International Space Station. April 27 2016 / Bridgeman Images
PIX4659070: Richat structure - Mauritania - satellite view - Richat structure, Mauritania, seen by Landsat - 7 satellite - Richat structure, geological formation of volcanic origin, in Mauritania, observed by the Landsat-7 satellite. The so-called Richat Structure is a geological formation in the Maur Adrar Desert in the African country of Mauritania. Although it resemble an impact crater, the Richat Structure formed when a volcanic dome hardened and gradually eroded, exposing the onion - like layers of rock / Bridgeman Images