Acquedotto, Water tower in Piazza XXIV Maggio, Ferrara, Italy.

The Acquedotto is a 37-metre reinforced-concrete water tower on Piazza XXIV Maggio, completed in 1932 to Carlo Savonuzzi's design. Its twelve-sided base, clad in trachyte, carries twelve columns 12 metres high that support a suspended tank holding 2,500 cubic metres, topped by a stepped dome. Two stairways branch off the base, one leading to Arrigo Minerbi's fountain depicting the Po and its tributaries.

The structure was built in the early 1930s as part of major urban development in Ferrara. Its completion brought modern water technology to the city and significantly changed how the city managed its water supply.

The square was first named Piazza XXVIII Ottobre for the March on Rome of 28 October 1922, then renamed Piazza XXIV Maggio after World War II for Italy's entry into World War I in 1915. Since the 1990s the former keeper's and engineer's flats on the first floor house the Isola del Tesoro family centre, which runs the Estate Bambini arts, games and theatre festival in early September.

You can walk to this structure in about 15 minutes from the railway station or from Castello Estense. The area is easy to navigate and the structure is clearly visible from street level.

The poplars around the structure refer to the myth of Phaeton: struck down by Zeus, he fell into the Po plain and became the river Eridanus, while his sisters, the Heliades, were turned into poplars. The fountain by Arrigo Minerbi, made in reinforced concrete at the same time as the tower, depicts the Po and its tributaries.