We've just stopped by Guadix on our way to Malaga. Pretty big village with an alcazar and a Cathedral. But we popped by to see the cave dwellers. :D they say about 3 000 people live in houses built into the clay. Some are really darling and cute, and others are ramshackle with an old curtain for a door. The chimneys or air vents pop out of the ground just behind the entrance. Really charming.