Catacombs of Domitilla, Rome, Italy(Courtesy Pontifical Commission for Sacred Archaeology)
Deep in the heart of Rome’s largest catacombs, laser beams have unveiled stunning 1,600-year-old early Christian frescoes. Mixing pagan symbols with Christian images, the paintings adorn the ceilings and walls of two burial chambers in the Catacombs of Domitilla, a labyrinth of tunnels and tombs stretching over 10 miles beneath Rome near the ancient Appian Way. The crypts, carved out of volcanic tufa,