Ponte della Fortezza (L. Corevi, Comune di Pisa)Originally, the Spina Alba bridge, named after its hosting districy, connected the church of San Barnaba, now disappeared, to the church of Sant'Andrea in Kinzica, also disappeared and of which today we can only see the base of its bell tower (leaning) at the entrance to the Scotto Garden. The bridge was built in 1260 in wood and stone and was later fortified when Bonifazio della Gherardesca commissioned the Vittoriosa tower (near the disappeared Spina Alba gate) in memory of the victory against Ludovico il Bavaro. The tower completely demolished in the 18th century. At the beginning of the 15th century, the bridge was rebuilt in masonry with four arches and fortified by the Florentines who included it in the defensive system of the Fortezza Nuova, hence the name of the present bridge. The bridge was destroyed during the Second World War.
