The ornate Fontana dell'Acqua Paola—known in Rome as Il Fontanone, or “the big fountain”—is located on the hilltop above Trastevere and is a highlight of many walking or Segway tours of this charming historic neighborhood. Trastevere pizza-tasting tours also often stop at the Fontana dell'Acqua Paola, as do tours of attractions featured in the film "The Great Beauty."
The fountain was commissioned by Pope Paul V to be the first major fountain on the Trastevere side of the Tiber river. Much of the marble used by architect Giovanni Fontana to build the fountain was pilfered from the Roman Temple of Minerva in the Forum of Nerva, and four of the six granite columns on the fountain's facade are from the original St. Peter’s Basilica. The design inspired that of the Trevi Fountain more than a century later.