TourTruth score 9.4 out of 10
Photo 1 / 6
Rome Basilica of Santa Maria Maggiore Underground Tour 50 min
Not rated yet
Rated on 1 provider · Why
- Rome, Italy
- 50 min
- Updated November 2, 2026
Explore ancient baths, mosaics, and rare frescoes beneath Santa Maria Maggiore on a guided 50-minute underground tour in Rome.
About this tour
Descend beneath the Papal Basilica of Santa Maria Maggiore and uncover a quieter side of Rome. This 50-minute Rome Basilica of Santa Maria Maggiore Underground Tour reveals a hidden world beneath one of the city’s great churches, where ancient baths, mosaics, and underground heating systems offer glimpses into life in the past.
Follow a professional live guide through the underground section, with audio headsets to help you hear clearly along the way. Look closely at rare frescoes, including a distinctive agricultural calendar, and take in the details that make this subterranean visit so memorable. Your entrance ticket is included, and the tour offers a fascinating contrast to the basilica above.
Meet at the basilica entrance in Piazza di Santa Maria Maggiore and arrive 15 minutes before your visit; late arrivals cannot be accommodated. Explore the hidden layers of Rome on this guided Rome Basilica of Santa Maria Maggiore Underground Tour.
Highlights
- Descend beneath Santa Maria Maggiore into a hidden Roman world
- Admire ancient baths, mosaics, and underground heating systems
- See rare frescoes, including a unique agricultural calendar
What's included
Included
- Entrance ticket
- Audio headsets for clear listening during the tour
- Guided tour of the underground section with a professional live guide
Not included
- Pickup and drop-off
- Anything not explicitly listed as included
Ratings on each provider
The ratings and review counts each booking site shows for this tour.
-
View on ViatorViator
Rating unavailable
Important information
- Arrive at the entrance of the Papal Basilica of Santa Maria Maggiore, Piazza di Santa Maria Maggiore, 00185 Rome, 15 minutes early
- Late arrivals cannot be accommodated and may result in forfeiting the experience
- Not recommended for pregnant travelers
- Not recommended for children under 7
- Suitable for all physical fitness levels
- Public transportation options are available nearby
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.
More Historical Sites & Landmarks in Rome
TourTruth score 9.4 out of 10
TourTruth score 9.1 out of 10
Rome St. Peter’s Basilica Tour, Dome Climb and Papal Tombs 2 hr 30 min
Top 3% · 2 hrs 30 min · 209 reviews
from US$181
1 provider
TourTruth score 8.9 out of 10
TourTruth score 8.9 out of 10
TourTruth score 8.8 out of 10
TourTruth score 8.8 out of 10
from US$31.87
on Viator