The Cave of Our Lady of Bisaccia is a small cavern that opens in a rocky block along the Centurelle-Montesecco Tratturo, not far from the shrine of Our Lady of Bisaccia and the town of Montenero, in an environmental context of great naturalistic value. The cavity is presumed to have been frequented as early as the early Christian period, between the 2nd and 4th centuries, and became a place of worship in the Middle Ages. Inside was preserved a painting of the Virgin and Child Jesus, which was later transferred to a rural chapel, later replaced by the 19th-century sanctuary that is encountered at the beginning of the stage; originally it appears that the cave was decorated with frescoes, of which, however, no trace remains today. It has an irregularly quadrangular shape and preserves a small altar in the left room and two figures in relief on the wall, perhaps a Madonna and a St. Michael the Archangel, in the one on the right, while in the pillar dividing the bottom in half other very ruined figures can be seen; numerous are the signs and names engraved on the walls, traces of the passage of shepherds and pilgrims (but not only) ancient and modern. The rock in which the cavity opens is rich in fossil shells.
