The Brunella Fortress dominates the town of Aulla, and has watched over the confluence of the Aullella and Magra rivers for centuries. It can be reached via the historic steps at the gates of the city, or along the comfortable dirt road that climbs through the park that surrounds it. From the hill, you can enjoy a beautiful view of the entire Apennine ridge and the Apuan Alps.
The quadrangular structure built atop a rock and which takes its name from its unique colour. The stronghold, built in the early 1500s, is a typical example of a fortification designed with weaponry in mind. A botanical garden is located in the adjoining park and the Museum of Natural History is housed inside the building.