Columbia subject headings:
Catacombs.
Christian art and symbolism.
Church history--Primitive and early church, ca. 30-600.
Harvard subject headings:
Catacombs--Italy--Rome
Catacombs.
Christian antiquities--Italy--Rome.
Christian antiquities.
Church history--Primitive and early church, ca. 30-600
Italy--Antiquities.
Rome--Antiquities.
Princeton subject headings:
Art, Early Christian.
Catacombs.
Christian art and symbolism.