As the route continues northward, we now reach Papiano, of which there is evidence dating from 1027. Arranged on the hillside, the castle appears quite graceful to us contemporaries, and the recent restoration of the streets makes it even enchanting. The bell tower, which is entirely made of stone and has a large clock and two bells, towers impressively over the entire castle.

Across the fertile and rich Tiber plain for a short distance, we come to the fork for Castello delle Forme. The village, also located halfway up the hill, reveals all its geostrategic importance as a place of defense. All that is left of the old defensive system of this village is a tower and parts of the old walls both made of stone, which form a single body. The surrounding countryside is pleasant and lends itself to the settlement of country villas such as Villa Cucchia Taravelli, a large 19th-century complex that is currently uninhabited.

We therefore reach San Valentino della Collina; the village, which winds along the hill road, retains from its medieval period only the bell tower adjoining the parish church. Instead, the old castle has incorporated the construction of Villa Baldeschi, now Sposini, a monumental building from the 17th century. On the same street is Villa Taravelli, with Art Nouveau architecture featuring decorations by Gerardo Dottori.

From San Valentino we move to Olmeto, where our itinerary ends.