Basilica Madonna di San Luca

500m/550yd west of the Porta Saragozza, the southwest town gate, begins a colonnade (built 1674-1739) of 666 arches, 3.5km/2 mi long, which extends by way of Meloncello (where a branch goes off to the Certosa) to the Monte della Guardia (reached also by a motor road), with the pilgrimage church of Madonna di San Luca. From here there are beautiful views as far as the Adriatic Sea and the Apennines, and in clear weather the Alps.