Acqua Paola Fountain, also known as Il Fontanone ("big fountain"), located in Rome on the Janiculum hill next to the church of San Pietro in Montorio. Built in the years 1610-1612 on the site of the end of the Aqua Paola aqueduct, restored by Pope Paul V and named after him. At the time, it was the large fountain on the left bank of the Tiber.

On the idea of ​​creating the fountain Aqua Paola Pope Paul V was inspired by the popularity of the fountain Aqua Felice, built in the late 16th century by Pope Sixtus V. Paul V decided to restore the ruined aqueduct Aqua Trajan, to provide residents the Janiculum hill, clean drinking water (until they were forced to draw water from the polluted Tiber). On the collected funds Dad bought the rights to the source near Lake Bracciano, which became a source of water for the aqueduct.

The fountain designed by Giovanni Fontana, author of the Aqua Felice and Flaminio Ponzi. They took the white marble from the ruins of the Temple of Minerva, and built a massive gates of the five arches for receiving water. At the top of the fountain installed the papal tiara and keys - over the family crest family Borzhdia (the eagle and the dragon).

Unlike fountain Aqua Felice, which is richly decorated with statues of biblical characters, the central theme is water Acqua Paola. Five powerful jets by five marble arches filled pools. In 1690, Carlo Fontana added a semi-circular pool of water that flowed over the edge of the original five. Interestingly, loved to swim in the fountain of the locals, and in 1707 even had to issue a special decree forbidding it to do. By the way, the form of the Aqua Paola served as a model for the creation of the legendary Trevi Fountain.