This document discusses several early Christian artworks found in the catacombs of Rome and the mausoleum of Galla Placidia in Ravenna from the 3rd to 5th centuries AD. It describes wall paintings depicting biblical scenes from the Old and New Testaments. It also describes the decorated loculi tombs and the famous Sarcophagus of Junius Bassus. The artworks show both pagan and Christian imagery mixed together and the Roman artistic styles adapted for Christian theological themes.