Florence:
Badia Fiorentina (13th century)
Santa Croce (Consecrated in 1443)
Santa Maria del Fiore (Saint Mary of the Flower) a.k.a. Duomo (Consecrated in 1436)
Rome:
Church of the Gesu (Consecrated in 1584)
St. Agnes in Agony (Completed in 1859)
St. Augustine (Completed in 1483)
St. Mary of the Valley a.k.a. Chiesa Nuova (Consecrated in 1599)
St. John Lateran Papal Archbasilica (Originally consecrated in 324)
St. Louis the French (Consecrated 1589)
St. Mary Major Papal Archbasilica (Consecrated in 434)
St. Paul Outside the Walls Papal Archbasilica (Consecrated in 1854)
St. Peter Papal Archbasilica (Consecrated in 1526)