First stop of the bike tour are the majestic city walls, one of the greatest expressions of modern fortification in Europe and the very symbol of the city! Outside the old town the itinerary continue in the countryside, along the arches of the aqueduct, built in the XIX century, by the local architect Lorenzo Nottolini. The arrival point is the valley of the springs, called "The Golden Words", the place where the imposing structure collected the waters to quench the thirst of the citizens! Return to the city to deposit any rented bicycles.