The territory is rich not only in historical-architectural features, but also in minor aspects, like some ancient traditions which have partly survived till present days: the stone heads on the walls of the houses, with a good wishes purpose and locally called "mummies", the most important religious buildings (Madonna dell'Acero Sanctuary, San Rocco Oratory, Delubro di Lizzano), the production buildings (rural houses and mills, like for instance the Mill of Capo di Poggiolforato), and the civil buildings (ancient villages), are only some examples of how men have left a lasting sign of their passage.
Madonna dell'Acero Sanctuary, one of the most famous sanctuaries of Appennino bolognese, is one of the greatest expressions of popular religiosity animating these mountains in the past. The sacred building is situated at the edge of a large grassy plateau facing Dardagna Valley.