The Neapolitan architect and engineer Onofrio della Cava completed the aqueduct with two public fountains, both built in 1438. Close to the Pile Gate stands the Big Onofrio's Fountain in the middle of a small square. It may have been inspired by the former Romanesque baptistry of the former cathedral in Bunić Square. The sculptural elements were lost in the earthquake of 1667. Water jets gush out of the mouth of the sixteen mascarons. The Little Onofrio's Fountain stands at the eastern side of the Placa, supplying water the market place in the Luža Square. The sculptures ware made by the Milanese artist Pietro di Martino (who also sculpted the ornaments in the Rector's Palace and made a statue – now lost – for the Franciscan church).