The style of architecture called Italian was first developed by Filippo Bruneschelli, and flourished during the 15th, 16th, and 17th centuries; it was an adaptation of classical circular-arch form to modern requirements. In Rome it conformed most to ancient types; in Venice it assumed its most graceful form. It was more suitable to domestic than to ecclesiastical work; but the dome is an impressive feature, and St. Peter's a noble church.