The catacomb of Priscilla in Rome was used for Christian burials from the late 2nd century through the 4th century.MAX ROSSI/Reuters
The catacomb reopened on Tuesday to the public after years of restoration. This marble inscription is one of the many treasures.MAX ROSSI/Reuters
Other artifacts, such as this skull, are not for the faint of heart.MAX ROSSI/Reuters
The complex is also viewable in a dedicated section of Google Maps.MAX ROSSI/Reuters
Proponents of a female priesthood say some of the frescoes prove there were women priests in early Christianity.MAX ROSSI/Reuters
The catacombs were rediscovered in the 16th century and plundered of many gravestones, sarcophagi and bodies. Excavations in modern times began in the 19th century.MAX ROSSI/Reuters
Laser technology was used to clean some of the ancient frescoes.MAX ROSSI/Reuters
A new museum houses restored marble fragments of sarcophagi.MAX ROSSI/Reuters