This paper reviews some of the main results of archaeoastronomical fieldworks carried out in sanctuaries and temples belonging to the Iron Age Iberian culture. Most of this work has been done in close collaboration with archaeologists. The orientation pattern of the Iberian sacred buildings seems to be related to the rising sun. A significant fraction of the sanctuaries show astronomical markers over topographic elements of the local horizon, most of them indicate the rising sun at the equinoxes or the temporal midpoint between the solstices. Iberian cave-sanctuaries - that tend to be oriented to the west - show illumination phenomena in their interior at sunset in singular moments of the solar calendar.