The Fontana di Trevi (Trevi Fountain) is the largest (about 26 meters high and 20 meters wide) and the most ambitious building of baroque fountains in Italy and is located in the Trevi district in Rome.
The fountain was at the intersection of three roads (tre vie), marking the final point of the Acqua Vergine, one of the oldest aqueducts that supplied the city of Rome. In 19 BC, supposedly assisted by a virgin, Roman technicians located a source of pure water a little more than 22 kilometers from the city (scene represented in sculpture in the actual source). The water from this source was carried by the smaller aqueduct of Rome, directly to the bathrooms of Marco Vipsânio Agripa and served the city for more than 400 years.
The “stroke of mercy” bestowed by Goth invaders in Rome was given with the destruction of the aqueducts during the Gothic Wars. The Romans during the Middle Ages had to supply themselves with the water of polluted wells, and the little limpid water of the river Tiber, that also received the sewers of the city.
The ancient Roman custom of erecting a beautiful fountain at the end of an aqueduct leading the water into the city was revived in the 15th century with the Renaissance. In 1453, Pope Nicholas II ordered that the Aqueduct of Acqua Vergine be repaired, building at its end a simple receptacle to receive the water, in a project made by the humanist architect Leon Battista Alberti.