The main denominator of this stage is history. We are on the Via Cassia, one of the most important Roman Consular Roads, built on the previous Etruscan road system: for over 2200 years people have been walking on these territories, which have seen the birth of the history of Italy. The reference to the Roman era is highlighted by the toponyms of the places crossed: Settimello, Sesto, Quinto etc. or stages evocative of the distance in miles from the capital Florence. Shortly after Prato, between comfortable paths and dry stone walls, we overcome slight differences in height and arrive at the “Cementizia”, ​​a factory from the last century, which stands out with its four chimneys halfway up the hill, a fine example of industrial archaeology. In the background, the plain opens up grandly onto territories that are now densely populated and rich in industries of primary international importance. We then climb to Calenzano, enclosed by ancient walls that preserve suggestive gates, the beautiful crenellated tower and a residence with a glorious past, where the Museo del Figurino Storico is located. The next stretch runs through the characteristic Tuscan olive groves, mostly on dirt paths, easy and completely safe, on hills dotted with castles and bell towers, Renaissance villas and monasteries, Etruscan necropolises, up to the ancient village of Querceto, with the ancient Church of San Jacopo, where a “Miraculous Christ” is preserved. After passing other Medici villas, including the Villa Reale di Castello, today home to the Accademia della Crusca, from the Careggi hill we arrive at the gates of Florence, on which there is no need to dwell with summary descriptions, as it is one of the most beautiful cities in the world.