Interview with Luigi Piccardi, researcher at the Institute of Geosciences and Earth Resources, published on the magazine Il Venerdì of the Italian newspaper La Repubblica, on December 29, 2017, regarding the usefulness of interpreting historical sources deriving from oral tradition to retrieve information on prehistoric geological events. In more than 20 years of research Piccardi, carrying out these studies to support his activity as a geologist, has also been able to recognize the geological origins of many of the most important sanctuaries of antiquity, deliberately built on seismic faults, such as the Oracle of Apollo at Delphi, the oracle of Trophonius or the source of Lerna in Greece, the Sanctuary of Archangel Michael at Monte Sant'Angelo, the temple of Hercules Curino at Sulmona or the Mefite of Amsanto in Italy, the Plutonium of Hierapolis of Phrygia, the original sanctuary at Ephesus and the sanctuaries of Aphrodite and Demeter at Cnidus in Turkey, and many others. It was also possible to recognize the historical foundations of entire mythological cycles such as that of Heracles, on which a recent essay by CNR Edizioni was recently published.