The hillsides north of Tuoro sul Trasimeno were the site of one of the worst military disasters in Roman history: in 217 BC, Hannibal ambushed and destroyed an entire Roman army of about 25,000 men in a morning's fighting. The battlefield is accessible via a marked walking trail, the Campo del Sole (Field of the Sun), which passes key points in the action with information panels in Italian and English explaining how the ambush was laid and executed.
The trail covers several kilometres through farmland and low hills, taking about two to three hours at an easy pace. At various points, the geometry of the ambush becomes clear on the ground: the narrow shore road along which the Romans marched, the hills where Hannibal's troops waited concealed in morning fog, and the lake that prevented escape to the south. A small museum in the village centre — the Museo della Battaglia — provides maps, weapons, and archaeological finds for additional context.