The monumental fountain of Pope Julius is located at the corner of Via Flaminia and Via di Villa Giulia. The difficult to please critic Francesco Milizia made the following criticism that the first order [the type of columns] is designed in the Corinthian style and the second is Corinthian in some parts and Ionic in others. According to him, such combination was such a horror. But in fact, the two sets of columns, one on top the other, were intended to be different. The lower level, which is all in a hard volcanic stone called peperino, consists of three sections. The central one has two marble Corinthian columns on high bases flanking the fountain. At the top of this section are an architrave (lintel) and tympan (recessed triangle).The lines of the tympan were broken in 1750 in order to incorporate the coat-of-arms of Benedict XIV. And on the each of the side sections on the lower level has a pair of pilasters enclosing a large rectangular niche.

Also the upper level of the fountain is divided into three sections. The upper level also consists entirely of rows of bricks and looks almost cheerful when compared to the severity of the lower part of the monument. The two Ionic columns of the central section standing one on each side of the Medici coat-of-arms of Pope Pius IV enclose the two well rounded statues of the winged goddess Fama, which means Fame. Beneath them, there is a huge plaque commemorating Carlo Cardinal Borromeo. This is set between two leonine herms (plinths with heads). And finally, in each of the two side sections a window is surmounted by a blank shield and attractive festoons.

Despite such a lack of harmony between the two orders and a certain air of neglect, all in all, it cannot be denied that the monument have a rather noble and pleasing quality. And in overall, the fountain is elaborate in a way that is quite out of proportion to the modest little fountain at its base.