Trevi and Navona Undergrounds: Vicus Caprarius and Domitian Stadium

Explore a hidden layer of Rome on this private underground experience that reveals what lies beneath two of the city’s most recognizable landmarks. Guided by an Official Private Guide and with all entrance fees included, this tour offers a revealing look at how ancient Rome continues to exist beneath today’s streets.

The experience opens beneath Piazza Navona, a Baroque masterpiece that conceals a far older structure below. Descending underground, you enter the remains of the Stadium of Domitian, constructed in the 1st century AD for athletic contests and public events. Walking through preserved corridors and architectural remains, you clearly see how the shape of the ancient stadium dictated the form of the square above, creating a direct connection between imperial Rome and the modern city.

Leaving Piazza Navona, the walk continues through the historic center toward the Trevi Fountain. After stopping to admire its dramatic façade and hear the story behind its symbolism, you step below street level once again. Here, the visit continues inside the Vicus Caprarius, often called the City of Water. This underground complex reveals ancient residential structures, passageways, and a segment of a Roman aqueduct that still carries water today, feeding the fountain above.

Throughout the tour, your guide explains how Rome developed vertically rather than replacing its past, allowing ancient infrastructure to survive beneath later construction. Moving through these quiet underground spaces offers a striking contrast to the busy streets above and a clearer understanding of Rome’s layered history.

This private underground tour is ideal for travelers who enjoy archaeology, hidden sites, and a deeper understanding of Rome beyond its surface, revealing how the ancient city continues to support and shape the modern one.

• Pick-up is included only for guests staying within the Aurelian Walls
• Unfortunately, this tour is not suitable for wheelchair users.

1. Dolce Vita policy is applied on all Standard Bookings placed more than 72 hours from the date of the event. We provide all our customers with Refundable Terms up to 72 hours from the date of the event for any reason. To apply for a refund including where your tour is cancelled or changed by Eyes of Rome®, please contact our customer service team at info@eyesofrome.com.
2. Peace of Mind policy is applied on Selected Bookings and on all Bookings placed within 72 hours from the date of the event. We provide all our customers with Refundable Terms so if you are unable to attend your booking due to unforeseen circumstances outside of your control you may be entitled to a refund - please see our full set of Refundable Terms and Conditions here. To apply for a refund, please find the instructions on how to apply in the booking confirmation email you received after payment.