Enjoy a new perspective of the Trevi Fountain with this Trevi Fountain underground tour. Explore the history of the fountain, explore the passages underneath it, and see the ancient Roman aqueduct that lies beneath the fountain. See the famous Trevi Fountain, and learn more about the underground passages stretching out under the Trevi Fountain, where the remains of of an ancient aqueduct are visible. Explore “Vicus Caprarius – the City of Water”, an impressive archaeological area located underground beneath the Trevi Fountain. Admire the remains of one of the 11 aqueducts built by the Romans, whose poetic name, Aqua Virgo, means “pure water”, referring to the purity and clarity of the water. archaeological site. Enjoy your visit to the Pantheon in Rome with a reserved entry ticket. Avoid long waits to purchase tickets and explore this well-preserved architectural jewel. Learn why it has remained intact over the centuries, surviving the looting following the Roman era.