Trevi Fountain in historic Rome Italy from the side. Largest Baroque fountain in the city and one of the most famous fountains in the world. Tourists and visitors enjoying the Roman fountain and pool. The fountain at the junction of three roads marks the terminal point of the modern Acqua Vergine, the revived Aqua Virgo, one of the ancient aqueducts that supplied water to ancient Rome. Don Despain of Rekindle Photo.