The first Christians did more than gather to pray: they practiced charity, even in the burial of the dead. Discover the story of Flavia Domitilla, a Roman noblewoman of the 1st century, and how on her land arose one of the largest and oldest catacombs in Rome, with nearly 17 km of galleries. Learn about their spiritual meaning, Eucharistic celebrations among the tombs, and the church dedicated to martyrs Nereus, Achilleus, and Saint Petronilla.