This road, which originates in Canterbury, is almost 1,700 km (1,050 miles) long. After the Channel crossing, the Via Francigena passes through Arras, Reims, Châlons-en-Champagne, Bar-sur-Aube, Langres, Besançon and Pontarlier, and then into Switzerland, running through Laussane and Saint-Maurice, before climbing the Col du Grand-Saint-Bernard. It then moves into Italy, where it connects Aosta, Ivrea, Vercelli, Pavia, Fidenza, Lucca, Poggibonsi, Siena, Bolsena and Viterbo on the way to Rome. It then runs along the ancient Via Cassia to St Peter's Basilica in the Vatican City, before passing the Monte Mario and finally reaching the Via Triumphalis.