There are many troglodyte villages in the Costa Almeria. They are well worth a visit. Families today still live in extraordinary cave homes (cave houses) dug out of the side of the cliffs. In particular the village of Sante Fe de Modujar is well recommended.
With some of the cave homes you can see from the outside roof tiles, windows, doors, and chimneys. But most are hidden in the mountain side to protect the dweller from the heat.