Early Christian burial sites are now easier to see, both in person and via the Internet, thanks to 21st-century technology and collaboration between Google and the Vatican.
"This is perhaps the sign of the joining of two extremes, remote antiquity and modernity," said Cardinal Gianfranco Ravasi at a news conference Tuesday at the Catacombs of Priscilla in northeast Rome.
The cardinal, president of both the Pontifical Council for Culture and the Pontifical Commission for Sacred Archaeology, lauded recent restoration work by the archeological commission inside the complex of early Christian tombs.
Using advanced laser techniques, restorers have uncovered vivid late fourth-century frescoes depicting Jesus raising Lazarus from the dead and Sts. Peter and Paul accompanying Christians into the afterlife. Jesus' face resembles portraits of the Emperor Constantine, who legalized Christian worship in 313.
Ravasi also heralded the debut Tuesday of the catacombs on Google's Street View feature, a project he said had grown out of a conversation he had with the Internet giant's executive chairman, Eric Schmidt.
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Users of Google Maps can now click the "see inside" option for the catacombs, which allows them to move virtually through the narrow corridors tunneled out of soft tufa stone and to see high-resolution images of the interiors from practically every angle. The brilliantly lit views are in startling contrast to the shadowy reality of an in-person visit.
Google's Giorgia Abeltino told reporters that almost the entire 8-mile complex of catacombs is now accessible online. However, there is no underground map to let users know exactly what they are seeing.
Also on Tuesday, Google launched a Street View of the catacombs of the Ipogeo di via Dino Compagni, located in southeast Rome. The catacombs are privately owned and not open to the public, so the virtual mode is the only way to visit them.
The news conference at the Catacombs of Priscilla was held above ground in the reconstructed fourth-century Basilica of St. Sylvester, where a new museum displays hundreds of fragments of ancient marble sarcophagi, also recently restored. A glass floor offers illuminated views of the sites of ancient tombs below.
Msgr. Giovanni Carru, secretary of the Vatican's archeological commission, said the restorations had made the Catacombs of Priscilla a "privileged course" for pilgrims to Rome, helping them to appreciate these "dark places that were lit up by the emblematic and paradigmatic stories of salvation" painted on their walls.