Entering “Orrido di Bellano” it is possible to see a three-storey tower, with a pentagonal plan, overlooking the Pioverna stream. It is today known as the “Ca’ del Diavol”, the dialectal Italian name of “House of the Devil”: the murals on the highest area of the museum show indeed the devil and some other mythological figures. Moreover, some myths represent it as the location of many satanic rituals, orgiastic parties, and meetings.