Santa Marta Cistern was built between 1924 and 1925 and connected to the Filettole aqueduct system. The structure consists of an outer masonry shell with a gabled roof supported by wooden trusses, enclosing two reinforced concrete tanks originally designed for the collection and distribution of water. Following its restoration, the site now houses a Water Documentation Center, dedicated to the history of the relationship between Pisa and its water resources. Through the use of informative panels, audiovisual content, and multimedia technologies, the center explores the evolution of the water system in the Pisan territory from historic aqueducts to modern-day infrastructure.
Barbagianni Bastion, hidden for decades behind dense vegetation, can now be seen in all its imposing glory. It was built in the 16th century as the plaque it bears, dedicated to Cosimo I de’ Medici, testifies. The name Barbagianni (or barn owls) is believed to derive from the presence of these birds in the area. The area features elms, laurels and privets, plants that are resilient to limited water availability and possess broad canopies, providing ample shade as well as food for local birds. The Walls of Pisa serve as an important ecological corridor for small to medium-sized mammals, small reptiles and various bird species. Using camera traps the following species have been observed: common geckos and Moorish geckos, wall lizards, hedgehogs, European robins, blackbirds, Eurasian blackcaps, magpies, mice, young rats, cats, beech martens and foxes. Following the cleaning and restoration work on the bastion, the first pollinators have also been spotted among the wild-growing flowers. The goal of the restoration was to preserve the existing environmental balance, ensuring that every living creature could find its own space within the bastion. Throughout the green area, piles of stones have been arranged to create safe spaces and various shelters for animals.
Access is included in the ticket of Pisa Walls, opening hours are the same but they close one hour earlier.