It is possible to split this stage from San Gimignano to Monteriggioni into two stretches envisaging an additional stop in Colle Val d'Elsa. Here you can visit the necropolis of Dometaia which has been the object of research and study since the late 19th century, when the Marquis Bonaventura Chigi Zondadari began digging in the area and found an important sepulchre from northern, inland Etruria. After the creation of the park, some 40 tombs of varying nature were dug up: hypogeum tombs made of more orthogonal rooms with respect to the vestibule and a range of simple tombs, including different kinds of "trench graves" for normal people. The most important hypogeum family tombs of the area were important and considered prosperous because they were placed on fertile soil and in a prime position along major roads, this necropolis is located along an important ancient road, which likely coincided with the Via Francigena. 

The “Ranuccio Bianchi Bandinelli” Archeological Museum, located in the medieval Palazzo Pretorio, in the historic centre of Colle di Val d’Elsa, gathers material of Etruscan and Roman origin from the Valdelsa area, which was very populated in ancient times. The vase that we show here was decorated with the technique of the red figures and is a product of the workshop of Pittore di Milano, who worked in Volterra in the late 4th century BC. He was often commissioned to work during symposia; a fact that can be confirmed by the Dionysus-like motifs on the vase, which show an entourage of Satyrs and maenads. The object, which was found in the room of a tomb in the Dometaia necropolis, is one of the most noteworthy pieces in the ancient burial ground due to its excellent condition and the richness of its decorations. Together with other elements of the tomb and the materials used in the tombs, it is important to note how the Valdese area, and more specifically this zone of the area, was scattered with important transit roads, already in the Etruscan age. The roads were then re-paved and re-used in subsequent eras, and today they represent the "Sigeric" section of the Via Francigena.

Located about 4 km from Monteriggioni is the Abbey of San Salvatore all'Isola, founded in 1001 by Countess Ava, from the family of the Lords of Staggia. The monastery was built in Borgonuovo, along the route of the Via Francigena, and it soon became a place of hospitality for pilgrims and travelers. Today, the beautiful Romanesque church (mostly from the twelfth century) still stands, whose double-portal of the facade is probably a symbolic reference to the same scheme used in the Holy Sepulchre of Jerusalem. The local monastery is today a modern guest house for pilgrims, a documentation center and a museum of the Via Francigena. Along the route of the Via Francigena also stands the hermitage of San Leonardo al Lago. The presence of significant local religious figures, including the Blessed Agostino Novello, helped turn it into a place of pilgrimage.