famous st. peters square or piazza san pietro in rome

alexander architect architecture art arts basilica bernini blue brilliancy building capital cardinale cathedral catholic catholicism chapel christian christianity church city conciliazione cupola dagger day daylight dome europa holiness immensity italian italy latium marble michelangelo museums palace papacy people peter peters petersdom piazza pietro plaza politic pope prayer religion religious rom roma rome saint saintpierre san sculpture sightseeing sistine sky square statue stone summer tour tourism travel urban vacation vatican