Rome St. Clement's Basilica and Underground Guided Tour 105 min - Image 1
Rome St. Clement's Basilica and Underground Guided Tour 105 min - Image 2
Rome St. Clement's Basilica and Underground Guided Tour 105 min - Image 3
Rome St. Clement's Basilica and Underground Guided Tour 105 min - Image 4
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Rome St. Clement's Basilica and Underground Guided Tour 105 min

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  • Rome, Italy
  • 1 hr 45 min
  • Updated November 2, 2026

Descend 14 meters beneath Rome’s Basilica of San Clemente to explore ancient layers, hear early-Christian stories, and admire historic frescoes.

About this tour

Descend beneath Rome’s Basilica of San Clemente and uncover a hidden world beneath the city streets. This 105-minute guided tour takes you 14 meters underground, where layers of history reveal stories of pagan cults, early-Christian legends, and Rome’s earliest martyrs.

With an expert guide, explore the ancient structures built beneath the basilica, then make your way upward through the successive layers toward the surface. Along the way, admire early Christian frescoes that portray martyrs and the struggles faced by the first Christians. Entrance tickets are included, so you can focus on the remarkable details and stories surrounding this historic site.

Meet your guide in front of the church entrance. Discover the hidden depths of Rome on this St. Clement’s Basilica and underground guided tour.

Highlights

  • Descend 14 meters beneath the Basilica of San Clemente
  • Explore layers of ancient structures on the way back to the surface
  • Admire early Christian frescoes depicting martyrs and the struggles of the first Christians
  • Hear stories of pagan cults and early-Christian legends

What's included

Included

  • Expert guide
  • Entrance tickets

Not included

  • Tips

Ratings on each provider

The ratings and review counts each booking site shows for this tour.

Important information

  • Meet in front of the church entrance
  • Public transportation options are available nearby
  • Infants must sit on an adult’s lap
  • Not recommended for travelers with spinal injuries, pregnant travelers, or travelers with poor cardiovascular health
  • Suitable for all physical fitness levels

How this score is calculated

This tour has no TourTruth score yet: Viator doesn't show a usable rating for it. It gets a score as soon as a provider lists one.

How the score works
  • Each provider rating is turned into a percentile: the share of that provider's ratings it beats, weighted by review counts.
  • Listings on different providers are combined in proportion to their review counts.
  • Tours with few reviews are pulled toward the average until more reviews come in, so a handful of perfect reviews can't top the list.
  • The result is shown from 0 to 10. Tours without a usable provider rating are not scored.

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