Levanto Castle is part of the defensive system built in the Middle Ages to protect the town. The layout of the walls, almost entirely preserved, was designed in the early 1200s to protect the town from threats from the Pisans, and the entire population participated in the construction. The route starts from the castle, descends to the Cantarana stream, climbs up to the Costa hill and at its highest point, before descending to Via Guani, it joins the Tower known as the Clock Tower, an exceptional testimony to medieval architecture. The walls were in fact punctuated by six towers alternating with four gateways to the village: of these, the Clock Tower is the best preserved and which maintained until at least the 1600s, thanks to its privileged position, its role as a garrison of sighting and control towards the sea and upstream. A task also confirmed by the presence of a path on top of the walls and the opening dating back to 1600 of a connection between the inside and outside of the village, right next to the Tower. The artifact is still in a good state of preservation and is accessible inside from the 'entrance to the top, where there is the clock that characterizes it and a panoramic terrace overlooking the entire valley. The castle tower is the starting point of a pedestrian path that allows visitors to admire the city walls. The Porta del Fossato, on the other hand, leads to the path to Monterosso.
