Rome Trevi Fountain Underground Walking Tour 40 min

Step below the busy streets of Rome and discover an archaeological world hidden beneath the Trevi neighborhood. Just steps from the famous fountain, the City of Water site lies more than 9 meters underground, where ancient masonry still channels water connected to the Trevi area.

On this 40-minute guided walking tour, explore the remains of the Aqua Virgo aqueduct’s distribution tank, known as the castellum aquae. See an Imperial-era apartment block that later became a wealthy Roman domus, alongside structures built over the ancient remains. These are genuine archaeological discoveries, not reconstructions. Look for ancient marble decorations, African amphorae, architectural fragments, and a remarkable hoard of more than 800 coins.

A professional local guide brings the site’s layers of history into focus, while the small-group experience offers a closer look at this little-seen side of Rome. Choose the Trevi Fountain Underground Walking Tour to trade the crowds above for the stories preserved below.