Lanzarote

The landscape of Lanzarote, one of the Spanish-owned Canary Islands, has been shaped by hundreds of years of volcanic activity. Located about 78 miles (125 km) off the north coast of Africa, the island contains numerous volcanic “tuff cones,” the largest of which — Caldera Blanca — measures 3,760 feet (1,140 m) across and 1,500 feet (450 m) tall. Lanzarote’s unique terrain and desert-like climate has been used to train astronauts and test Mars rovers.

29.035000°, -13.633000°

NASA