Fountain in Piazza Santa Maria in Trastevere by a Roman aqueduct, the Aqua Traiana. When the aqueduct was ruined during the invasions of Rome, water came from underground sources below the Janiculum hill. The old fountain illustrated in the drawing of del Massaio had two vasques, one above the other, pouring water into the basin below. The fountain was reconstructed between 1499 and 1500 on the command of Giovanni Lopez, the bishop of Perouse and Bishop of the parish of Santa Maria in Trastevere, who gave the commission to Donato Bramante, the architect of St. Peter's Basilica. Bramante removed the upper vasque and added four carved stone
Piazza Colonna of the Italian government. The east side is taken up by the 19th century public shopping arcade Galleria Colonna (since 2003 Galleria Alberto Sordi), the south side is taken up by the flank of Palazzo Ferrajoli, formerly the Papal post office, and the little Church of Santi Bartolomeo ed Alessandro dei Bergamaschi (1731-35). The west side is taken up by Palazzo Wedekind (1838) with a colonnade of Roman columns taken from Veii. The piazza has been a monumental open space since Antiquity; the temple of Marcus Aurelius stood on the site of Palazzo Wedekind (TCI). The fountain in the piazza