The Ancient Thermal Spa Jacobelli were founded in 1861 by the knight Achille Jacobelli of San Lupo, and officially inaugurated in 1867. The park had about forty dressing rooms, a marble tank, in which it flowed, constantly renewing, the mineral water, and even a fresh water fountain. The structure, located along the Via Francigena, is completed by a porch that allow visitors to walk in the shade.