Underground Tour of San Clemente, Rome

The 12th-century Basilica and the ancient site of San Clemente, two of Rome's hidden gems, are just a short distance from the Colosseum. Gasp in awe as you explore this location's three underground floors to learn about its more than 2,000-year history. The underground floors of the Basilica were undiscovered until 1860. If it wasn't for a flood in that year that prompted an Irish Dominican Roman Catholic priest and archaeologist to discover this space, it would have been undiscovered even today.

You can go 100 feet underground even if the excavations aren't finished yet. On the lower level is a basilica from the fourth century. When the 12th-century basilica above it was built, it had long been forgotten. Further down, there is an antique Mithraic temple with an altar.

Underground Tour of San Clemente, Rome

Discover the hidden layers of ancient Rome on this underground tour that delves into the historical site of San Clemente Basilica, a place where over 2000 years of history are revealed through its archaeological layers. This guided journey lasts approximately three hours and includes access to both St. Clement's Basilica and the excavations beneath it, with audio guides available in English and Italian for enhanced immersion. The tour covers key landmarks such as the Colosseum, which is a short walk away from San Clemente, making this an ideal excursion for visitors interested in sightseeing and exploring Rome’s rich cultural heritage.

Explore the Layers of History at San Clemente Basilica

Your tour stops at San Clemente Basilica where you uncover 2000 years of history through its archaeological layers. Established around 1099, this basilica stands on a site that has been used for worship since the early Christian era, with excavations revealing earlier structures dating back to the second century AD. The lower levels of San Clemente include an old Mithraic temple and altar, which are unique in their preservation and provide insight into Roman religious practices before Christianity became dominant. Visitors spend about 15 minutes exploring each level, marveling at the intricate gold mosaics that adorn St. Clement's Basilica above ground. This site is crucial for understanding Rome’s transition from pagan to Christian worship, offering a rare glimpse of how ancient buildings were adapted and reused over centuries.

Visit the Colosseum

The tour takes you to the iconic Colosseum where guests can witness one of the most famous landmarks in Rome. Built between 70-80 AD, this amphitheater spans approximately 620 feet long and 513 feet wide with an elliptical shape that could accommodate up to 50,000 spectators for gladiatorial contests and public spectacles. Visitors spend about one hour exploring the Colosseum’s three main levels, including the underground chambers where gladiators prepared before battles. This site is unique compared to other ancient Roman structures due to its sheer size and historical significance in shaping early entertainment culture.

Tour Highlights

• Explore archaeological layers at San Clemente Basilica
• Walk 15 minutes from the Colosseum to reach San Clemente
• Audio guides available in English and Italian languages
• Marvel at gold mosaics inside St. Clement's Basilica
• Descend to find old Mithraic temple and altar underground
• Enjoy guided commentary throughout the entire tour experience
• Access included to Colosseum, one of Rome’s most famous landmarks
• Convenience with pick-up from centrally located hotels

Perfect for history enthusiasts, architecture buffs, and those interested in ancient Roman culture, this guided tour provides a deep dive into the layers of Rome's past. The three-hour format allows you to explore San Clemente Basilica thoroughly, walk through the Colosseum’s underground chambers, and admire its intricate gold mosaics, giving you unparalleled insight into the city's rich historical tapestry.