The ancient road, whose toponym would suggest that the area was used as a stone supply area, was originally a natural depression, which began to be regularized and made passable already in the Greek age, probably to make it easier to access to the sea Used in Roman times, it underwent important works of rearrangement and reorganization especially in the Middle Ages when several rooms dug directly into the altitude jump began to be recovered.

The rooms, to be defined hypogeic, were intended for the most varied uses and retain traces, in some cases very evident, of the various eras that have seen them as protagonists.

The study of historical sources, as well as the archive survey, showed that much of these spaces intended for production or storage belonged to the nobles, clergy and religious orders present in the city.

The fortune of this type of construction was linked above all to its hypogeal identity which guaranteed safety (they were, in fact, within the defense walls) and constant temperature which made them perfect for use as oil mills, cellars, granaries etc. "