The monumental fountain was designed by Frà Bevignate da Cingoli and built between 1275 and 1277 to celebrate the arrival of water in the acropolis of the city, by means of the new aqueduct.

Bevignate cooperated with other talented professionals, as Boninsegna Veneziano, a hydraulic engineer, who accomplished an incredible audacious endeavour, being able to carry the water coming from monte Pacciano, located a few kilometres,[1] without the help of pumps.

The lower basin is made up of 25 mirrors, each divided into 2 tiles that describe the 12 months of the year, each of which is related to a zodiac symbol.

[5] The basin can be seen as a wind rose, where at each cardinal point there are relevant characters; i.e., the representation of Augusta Perusia with the cornucopia on her lap, which draw nourishment from the ears of wheat brought by the lady of Chiusi (once the granary of Perugia) and from the fish offered by Domina Iacus,[7] the nymph of the Lake Trasimeno.

In the lower frame of the second basins, Latin verses are carved; epigraphic abbreviation provides information on the authors and the date of the sculpture, and they are an invitation to examine and interpret the fountain: "Guarda tu che passi questa fontana dal lieto mormorio, se osservi bene puoi vedere cose mirabili…."