Columbia subject headings:
Catacombs--Italy--Rome.
Christian antiquities--Italy--Rome.
Christian art and symbolism--Italy--Rome--To 500.
Italy--Antiquities.
Mural painting and decoration, Early Christian--Italy--Rome.
Rome (Italy)--Antiquities.
Harvard subject headings:
Catacombs--Italy--Rome
Christian art and symbolism--To 500--Italy--Rome
Mural painting and decoration, Early Christian--Italy--Rome.
Princeton subject headings:
Catacombs--Italy--Rome.
Christian antiquities--Italy--Rome.
Italy--Antiquities.
Rome (Italy)--Antiquities.