The sanctuary of San Biagio rises in correspondence of five springs on a hill, along the road that connects Metaponto with the indigenous centers of the hinterland.
Archaeological investigations have revealed ceramic materials attributable to frequentation of the area since the Neolithic and, after a period of abandonment, in the Iron Age. At the end of the 7th century BC, a sacred area with a sanctuary was created, whose history is divided into 4 phases: in the first phase (625-550 BC) a rectangular basin was built around the springs, of which fragments of clay slabs remain, depicting a warrior on a chariot with a charioteer drawn by winged horses (perhaps Achilles); in the second phase (550-475 BC) a sacellum was built, of which part of the foundations and architectural decoration and votive statuettes are preserved; in the third phase (475-450 BC) the sacellum was rebuilt with more resistant materials and decorated in relief; in the fourth phase (450-350 BC) a votive deposit was built at the eastern corner, sealed with terracotta from the previous phase.
Around 350 BC the sacellum was destroyed and a new structure was built on its remains, perhaps a peripteral temple.
Initially, the sanctuary of San Biagio was identified as sacred to Zeus, whose name was inscribed on a stone. Later, the title of the cult passed to Artemis due to the presence of statuettes depicting her. Among the many artefacts found, many of which are on display in the Museum of Metaponto, is a precious amphora depicting a racing quadriga on one side and a fight between a hero (perhaps Heracles) and a monstrous being in the presence of a Gorgon on the other.
In the Roman imperial period, the hill of San Biagio housed a farm of particular value and refinement, with a small spa attached.