What is today Piazza Tacito was once a widening, an extreme offshoot north of the city of Terni, crossed by its medieval walls. The building of the railway station and the subsequent opening of Corso Tacito turned that widening into a square and future business park. For this reason an architectural competition was launched in 1932.
This competition was the occasion of Mario Ridolfi's first impact with Terni. It was his project, designed in tandem with Mario Fagiolo, which won. A substantial square, precisely what was needed. And there it is, divided into four parallelepipeds, enriched by the green of the holm trees, in harmony with the pre-existing buildings, some of which were only built after Terni had become provincial capital. In the centre of the square, not the usual monument to those fallen in war which had been there since 1927, but that which was for years a symbol of the city - A modern fountain, with a great basin, the water tumbling down from a pool above and in the centre a thirty-metre high steel pole.
A kind of monument to steel, to industry, to the energy flowing from that water. A monument to the future. Embellished in its essence by the intervention of an artist such as Corrado Cagli who realised the mosaics in the basin, delimited by a low marble wall, an invitation to sit down and enjoy the coolness of the water cascading copiously in a myriad of splashes, on the hot summer days in Terni. At the same time, a clear signal that the square was meant to be a meeting place, which had that symbol reaching up to the sky as catalyst. Cagli realised a series of mosaics which run all around the basin and represent the signs of the zodiac.
On several occasions, throughout the years, the fountain in piazza Tacito has been the venue for celebrations, the place to meet, to gather for the most significant events. On other numerous occasions, it has been necessary to carry out interventions of special maintenance for the mosaics damaged by the water continuously pouring on to them and for the hydraulic system.