Under the Trevi Fountain: Vicus Caprarius, the "City of Water"
A few steps from the Trevi Fountain, on vicolo del Puttarello, the Vicus Caprarius ("City of Water") is an underground archaeological site: the remains of a Roman apartment block on two levels and a large reservoir of the Aqua Virgo, the aqueduct that feeds the fountain. The visit takes about 30 minutes. The hours (Tuesday to Sunday, around 11:00 to 17:00) and the fare (about €4) come from undated sources: confirm them before you go (noted in October 2026, not confirmed by the site).
Highlights
The Roman apartment block
You go down below street level to see the brick walls of an insula, a Roman residential building, on two levels, with remains of mosaic floors. A metal walkway lets you pass above living rooms.
The Aqua Virgo reservoir
A large ancient cistern still holds lead pipes: it received water from the Aqua Virgo, which today runs into the Trevi Fountain. A small museum shows objects found on site, glass, polychrome marble, pottery and coins.
The Trevi Fountain next door
The site is a few minutes' walk from the basin. See the Trevi Fountain page for the paid (€2) access to the water's edge.
Horaires et tarifs
According to undated sources: Tuesday to Sunday around 11:00 to 17:00, closed Monday; entry about €4 (reduced for ages 14 to 18, free under 14), paid on site. An older source gives other hours and another price: confirm before you come. A guided tour of Trevi and its underground aqueducts, about one hour in a small group, can be booked online.
Practical info
Tips
- Allow 30 minutes and good shoes: the staircase is narrow. The visit combines with Trevi and the Quirinal, underground Rome and the Crypta Balbi. In busy periods, book or bring a guide, because the site is small. For other fountains, see fountains of Rome.
How to get there
Vicolo del Puttarello 25, 00187 Rome, behind the Trevi Fountain (brown "Area Archeologica" signs). Metro Barberini (line A), about 10 minutes on foot.
Opening hours
Nearby
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