Embark on a captivating journey through the 12th-century Basilica of San Clemente, an archaeological marvel nestled near the Colosseum. Delve deep into three levels of subterranean mystery, each unveiling a rich tapestry of over 2,000 years of captivating history. The basilica's central aisle is adorned with a resplendent gold mosaic, casting a mesmerizing glow.

Initially cloaked in enigma, the depths of San Clemente were brought to light in 1860 when a flood prompted an Irish Dominican priest and archaeologist to embark on an exploration below. Ongoing excavations continue to unearth new revelations.

Descend a hundred feet, and the first level reveals a forgotten 4th-century basilica, overshadowed by the 12th-century basilica constructed above it. Venture deeper to discover remnants of an ancient Mithraic temple, complete with its intact altar. Explore the skeletal remains of Roman houses, offering a poignant glimpse into a bygone era. At the lowest level, encounter the underground spring that sparked the initial discovery.