Free Church, Paid Excavations

At San Clemente, one key distinction matters: the upper basilica — the one with the famous golden mosaic — is free to enter, like Rome's other churches. Descending to the underground excavations (the 4th-century early Christian basilica and the Roman level with the Mithraeum) is what requires a ticket.

Tickets for the Excavations

The excavation ticket is modestly priced (indicative — check current prices on the official website), with a reduced rate for students, children and other categories. It is your way to experience the "journey through time" across the underground levels, home to the early Christian frescoes, the temple of Mithras and the ancient spring you can still hear running.

In certain periods online booking may be recommended or required, especially in high season: check the official website.

Opening Hours

San Clemente is generally open every day, with a midday break (indicative hours — check the official website); on Sundays and public holidays the schedule may be reduced for services. Last admission to the excavations is usually about 20 minutes before closing.

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Tips for Your Visit

  • The descent is absolutely worth it: the excavations are the real reason to visit San Clemente.
  • No photos in the excavations: photography is generally forbidden on the underground levels (check the rules on site).
  • Bring a sweater: underground, the temperature stays cool year-round.
  • Dress respectfully: it is a church (shoulders and knees covered).
  • Pair it with the Colosseum: it is just a few minutes away on foot.

Frequently Asked Questions

How much does it cost to enter San Clemente? The upper basilica (with the mosaic) is free. The underground excavations (early Christian basilica and Roman Mithraeum) require a modestly priced ticket. Check prices on the official website.

Do I need to book for the excavations? In certain periods online booking is recommended or required, especially in high season. Check the official website.

What are San Clemente's hours? It is generally open every day with a midday break; Sundays and public holidays may have reduced hours for services. Check the official website.

Can I take photos in the excavations? Photography is generally forbidden on the underground levels for conservation reasons. Check the rules at the entrance.

Is it worth paying for the excavations? Absolutely: the descent through the early Christian and Roman levels, with the temple of Mithras and the spring, is the experience that makes San Clemente unique.

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Article #333 · Category: Practical · Updated: May 2026