Uncover centuries of history on the San Clemente Underground & Basilica Tour. Explore the 12th century Basilica, ancient pagan temple, and Roman ruins hidden beneath the surface.
Uncover centuries of history on the San Clemente Underground & Basilica Tour. Explore the 12th century Basilica, ancient pagan temple, and Roman ruins hidden beneath the surface.
- Basilica of San Clemente - Visit of the Basilica of San Clemente in Laterano and the archeological site.
- Mitreo di San Clemente - Part of the visit of the archeological site under the Basilica of S. Clemente.
- Basilica of San Clemente - Visit of the Basilica of San Clemente in Laterano and the archeological site.
- Mitreo di San Clemente - Part of the visit of the archeological site under the Basilica of S. Clemente.

- Expert & Passionate English Speaking Guide
- Access to San Clemente Undergrounds
- Professional Headsets to hear your guide clearly (when at least 5 guests)
- Small group tour (max 15 guests)
- Entrance Tickets to the Archeological Site of San Clemente (10 euro value)
- Expert & Passionate English Speaking Guide
- Access to San Clemente Undergrounds
- Professional Headsets to hear your guide clearly (when at least 5 guests)
- Small group tour (max 15 guests)
- Entrance Tickets to the Archeological Site of San Clemente (10 euro value)
- Gratuities
- Hotel Pick-up and Drop-off
- Gratuities
- Hotel Pick-up and Drop-off
Exploring the 12th-century Basilica of San Clemente unveils a stunning gold mosaic above the central apse. Over the centuries, St. Clement’s evolved from a private residence, which served as a clandestine Christian worship site in the first century, into a grand basilica. The hidden layers beneath the Basilica remained undiscovered until 1860, when…
Exploring the 12th-century Basilica of San Clemente unveils a stunning gold mosaic above the central apse. Over the centuries, St. Clement’s evolved from a private residence, which served as a clandestine Christian worship site in the first century, into a grand basilica. The hidden layers beneath the Basilica remained undiscovered until 1860, when flooding prompted an Irish Dominican Roman Catholic priest and archaeologist to explore beneath the basilica floor.
Excavations continue to this day. Visitors can descend up to 100 feet underground across three levels. On the first level, a 4th-century Basilica is revealed, forgotten after the 12th-century Basilica was built above it. Below this, the remnants of an ancient pagan Mithraic temple can be found. Further down, the ruins of ancient Roman homes are uncovered.
- Not recommended for guests with mobility issues as the tour itinerary requires climbing and descending steps and well as walking on uneven terrain.
- Check-in is 15 minutes prior to the booked start time. Tickets are time sensitive and we cannot accomodate late arrivals.
- A dress code is required to enter places of worship and selected museums. No shorts or sleeveless tops allowed. Knees and shoulders MUST be covered for both men and women. You may risk refused entry if you fail to comply with these dress requirements.
For a full refund, cancel at least 24 hours before the scheduled departure time.
For a full refund, cancel at least 24 hours before the scheduled departure time.