Sant'Agnese in Agone church and Fountain of the Four rivers

roma art culture italy architecture statue square stone sculpture europe rome tourism monument travel landmark navona fountain church history touristic neptune historic heritage building summer sightseeing water people mythology marble baroque detail style fontana obelisk famous place piazza navona renaissance classical santagnese in agone giacomo della porta fontana del moro moor fountain fountain of neptune fontana del nettuno fontana dei quattro fiumi fountain of the four rivers gian lorenzo bernini palazzo pamphilj