On this 90-minute guided tour, you will discover the ancient Basilica of Saint Clement. This Basilica is a must-see hidden gem of Rome. This fascinating site boasts 4 levels of ancient Rome in one complex. Under the guidance of an expert guide, you will explore the Basilica of San Clemente, built on top of an ancient, 4th century church, built on top of a 2nd century pagan temple, built on top of a 1st century apartment building. Uncover the original place of conclave where the Popes were elected in the middle ages and the room, where a Pope changed his name for the first time. See the burial place of St. Cyril, creator of Cyrillic alphabet, and a private pagan temple of Mithra. Your guide will bring these perfectly preserved remains to life for you and show you the sites very few get to see.