The territory of Hispania Celtica (Celtic Iberia) stretched from the Atlantic to the Iberian Mountains (Sistema Ibérico) and from the Cantabrian mountains to the Guadiana valley. In Celtic Iberia there were many sacred places, such as high places, sacred rocks, shrines, and temples in which Mediterranean traditions mingle with the Indo-European substrate. The presence of these sacred places, located both in nature and in castros and oppida, testifies to their different functions. Excavations and researches carried out over the last twenty years have made it possible to renew their classification, and to know better their location, function and evolution. It is possible to classify these places from the old beliefs of the Bronze Age to the mythical stories of the founders of aristocratic lineages of the Iron Age, that have sometimes lasted from Antiquity to present times in folklore traditions. This text wants to highlight the relationships and the differences existing between these sacred places of Celtic Iberia and those documented in the Iron Age of Celtic Europe.