The Basilica of San Clemente in Rome is a remarkable site, known for its unique architectural structure that spans multiple historical layers, reflecting nearly 2,000 years of Roman history. Located near the Colosseum, San Clemente is one of the best examples of Rome’s stratified history, with a 12th-century basilica built over a 4th-century Christian church, which itself was constructed atop a 1st-century Roman building complex. The Caelian Hill is one of the seven hills on which ancient Rome was founded. The Roman Houses on the Celio Hill are an extraordinary archaeological site located beneath the Basilica of Santi Giovanni e Paolo on Rome's Celio Hill. These houses provide a rare glimpse into ancient Roman domestic life, showcasing a complex of well-preserved residences from different periods, complete with stunning frescoes and architectural features.