Forte Centrale
The fort is located directly on the summit of the Colle di Nava is well preserved and still open to visit. Pivot of the defensive system (entrenched field of Nava) was built from 1880 to 1888 in order to prevent any French troops, landed on the coast near Imperia, could head towards the Piedmont and the Po Valley through the road from Oneglia to Ormea.