Rome: San Clemente Underground and Basilica Guided Tour｜Italy

Discover one of Rome's hidden gems, the 12th-century Basilica, and the archeological site of San Clemente on a guided walking tour. Navigate three underground levels and learn about over 2,000 years of history.

Make your way to the first level and explore a 4th-century Basilica, which was long forgotten after the construction of the 12th-century Basilica above. Further down, see the remains of an ancient pagan Mithraic temple, complete with an altar.

Learn about how the fascinating ruins were discovered in 1860 when a flood led an Irish Dominican Roman Catholic priest and archaeologist to discover the levels beneath  At the lowest level, see the underground spring which caused the chaos that led to the discovery. 

Discover what remains of ancient Roman homes, painstakingly excavated and impeccably preserved. Uncover a hidden gem of the city away from the more crowded sites.