Forte Treporti

Treporti Fort built between 1845 and 1851
In the direction of Lio Grando is Fort Treporti, better known here as Fort Vecchio. Built on the remains of a small French fort, it was built by the Austrians in the second half of the 19th century. Built in the late 19th century (1845-1851) to watch over the lagoon area and the mouth of the port of Punta Sabbioni. Being quite a distance from Venice, it was equipped with adequate anti-landing protection directly on the sea front, but it also had passive defensive artillery facing the Venetian Lagoon. The main front on the western side, facing the lagoon, has two entrances: one faces a back area, while the larger and more important entrance, which had a portal and originally a drawbridge, faces an inner courtyard. During the First World War, two telemetric towers were built, one cylindrical and one square, designed to spot the enemy and calculate the direction of fire. Today, Fort Treporti is partially inhabited and several sports and cultural associations have their headquarters in its premises.
Text / Source: IAT Cavallino, Via Fausta, 406/a, Cavallino
visitcavallino.com/eng/discover-the-parco/arte/fort-treporti

What the many books in the niches mean I could not find out, but I liked to spend some time and I browsed something in the "shelves" and opened a book or two.

great location. It's worth looking at the whole thing up close