The Torrione Pumping Station (Impianto Idrovoro del Torrione) was built between 1920 and 1923. Using three pump units, it could drain excess water from the Crostolo stream. Located in the so-called “Torrione” area, between Gualtieri and Santa Vittoria, visitors can admire this “water machine”, which still houses various hydraulic artifacts dating from the 15th century to the present day. From this bank of the Crostolo, one can enjoy an evocative view of the Po Valley’s intricate water system. The origins of this network trace back to the second half of the 16th century, when Cornelio Bentivoglio persuaded Cesare Gonzaga to design a hydraulic plan for the Gualtieri estate. The plan included the canalization of the Crostolo up to the River Po and the construction of a “botte” -an inverted siphon- to divert rainwater into the Cavo Parmigiana Moglia, a man-made canal running west to east, eventually flowing into the River Secchia at Bondanello di Moglia (MN). This siphon, made up of two underground galleries, was built in the summer of 1576. It was later doubled in the 1950s. Known as the “Botte Bentivoglio”, after its patron who commissioned Giovan Battista Aleotti for its construction, the structure still plays a vital role in maintaining the hydraulic stability of the plains of Reggio Emilia and Modena.