Claim: The source of the water for the fountain of Piazza Colonna was only 67 feet above sea level; like the Trevi Fountain (designed by Italian architect Nicola Salvi), the Fontana della Barcaccia, and the fountains of Piazza Navona, all connected to the Acqua Vergine, the fountain of Piazza Colonna, built by Della Porta, was unable to jet water high into the air.
Verdict: SUPPORT