This is a self-paced journey through three historical layers of Rome in one site, guided by a clear and engaging digital audioguide.
Arrive at Basilica di San Clemente and show your voucher at the entrance. You’ll receive instructions to access and use the digital audioguide. No printed ticket needed. Modest dress required (shoulders and knees covered).
Basilica di San Clemente (12th century)
A working church known for its golden mosaic apse and quiet, atmospheric chapels.
4th-Century Basilica (Underground Level 1)
See preserved frescoes and early-Christian inscriptions that reflect Rome’s shift from pagan to Christian worship.
Mithraic Temple (Underground Level 2)
View the altar and chambers of the ancient cult of Mithras, hidden deep below the street level.
Underground Water Channel
Hear and see an active Roman-era water source still flowing beneath the city.
Wrapping up
Return to ground level and exit from the basilica at your own pace. No fixed end time — stay as long as you wish within opening hours.
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Large bags and camera equipment are not permitted.
Photography is strictly prohibited inside the crypt.
A modest dress code is required (shoulders and knees covered).
This is an active religious site; closures may occur due to services or events.
Cancellation is allowed up to 24 hours before the scheduled start time. Variant-specific cancellation policies may apply.
