Capuchin Crypt and Underground Rome Tour: 2 Hours

Two hours beneath Rome's streets, where bone chapels and ancient water systems tell the city's layered past

A guided underground tour of Rome visiting the Capuchin Crypt and the archaeological site beneath Trevi Fountain, led by an archaeologist or art historian in a small group of up to 15 people. The tour lasts two hours and includes a radio receiver so you hear the guide clearly in both locations. You descend into spaces most visitors never reach: a crypt decorated with the bones of thousands of Capuchin friars arranged into architectural forms, and the basement of Trevi Fountain where the ancient Acqua Vergine aqueduct still operates after more than 2,000 years.

Step-by-step itinerary

Explore underground Rome sites

• Descend into Capuchin Crypt
• Admire bone decorations
• Visit archaeological site under Trevi Fountain
• See ancient imperial domus structures
• View artifacts from Trevi Cinema renovation

The Experience

Two hours is enough to move through two of Rome's most unusual underground sites without rushing. The tour starts at the Capuchin Crypt, where you descend into a space decorated with approximately 4,000 bones arranged by an unknown artist into architectural elements—columns, crosses, chandeliers—that reference the afterlife. An archaeologist or art historian guide walks you through the friars' arrangement and the history of the site. A radio receiver lets you hear clearly even when the group spreads across the narrow chambers.

From there, the route moves to the Vicus Caprarius, the archaeological site beneath the Trevi Fountain. You walk near the remains of an imperial Roman house, the castellum aquae (water distribution tank) of the Virgo Aqueduct, and artifacts displayed from the renovation of the former Trevi Cinema. The aqueduct itself still carries water after more than 2,000 years. The guide contextualizes what you're standing in—how the city was built, rebuilt and layered over itself, and how water infrastructure shaped Roman life and still shapes Rome today.

The small group size, capped at 15 people, means more time to ask questions and fewer bodies crowding the narrow underground passages. Public transportation stops are nearby if you're coming from elsewhere in the city. Infants can sit on an adult's lap. The tour suits all fitness levels, though the Capuchin Crypt involves descending stairs and moving through confined spaces; wheelchair access is not available.

What’s included

Expert local guide (archaeologist or art historian); radio receiver for hearing the guide in both underground locations

Good to know

Easy physical levelPublic transport nearbyInfants must sit on laps

Operated by Rome with Silvia

Is this one for you?Book this tour if you want to move past Rome's famous surface attractions and stand in spaces most visitors never reach—a bone-decorated Capuchin chapel and a 2,000-year-old aqueduct still flowing beneath one of the city's most crowded fountains. The small group and expert guide make the two hours feel unhurried, with room to ask questions about what you're seeing rather than moving through on a fixed schedule.

Top questions

What exactly is the Capuchin Crypt and why are there bones arranged there?

The Capuchin Crypt is a burial chamber decorated with the skeletal remains of thousands of Capuchin friars, arranged into architectural forms like columns and crosses by an unknown artist centuries ago. The bones were incorporated into the design as a meditation on mortality and the afterlife, transforming the space into a unique chapel rather than a conventional tomb.

Can I see the actual aqueduct water flowing beneath Trevi Fountain?

The Vicus Caprarius site beneath Trevi Fountain includes the castellum aquae (water tank) of the Virgo Aqueduct, which still operates after more than 2,000 years. You'll see the ancient structures and artifacts from the site, and the guide explains how the aqueduct system functioned and continues to function in Rome today.

How many people are typically on this tour?

The tour is limited to a maximum of 15 participants, which keeps the group small enough to move comfortably through the narrow underground passages and allows more time for questions and interaction with the archaeologist or art historian guide.

Do I need to be in good physical condition for the underground sections?

The tour suits all fitness levels. Both sites involve some stairs and confined spaces underground, but there are no strenuous climbs or extended walking. Wheelchair access is not available at either location.

Is the guide's explanation in English?

Yes, the guide conducts the tour live in English and provides a radio receiver so you can hear clearly throughout both the Capuchin Crypt and the Trevi Fountain archaeological site.