This Spanish town has more than 2000 cave homes built around 16th century. People still live in these underground cave houses by the foothills of Sierra Nevada Mountains. Apparently, the Moors were fleeing from the ruthless Christian invaders when they found sanctuary in the hills which is made of soft sandstone. They carved safe havens in these caves, which later became cave homes for generations to come. Today these homes are as modern as any with running water, electricity and yes, the ubiquitous Internet too. While these cave homes are surrounded by arid desert with temperatures above 40C, inside these quaint homes the temperate is 20C — all year round. Guadix is located 50 km west of Granada in Spain.