Columbia subject headings:
Excavations (Archaeology)--Italy--Rome.
Mural painting and decoration, Medieval--Italy--Rome.
Tombs--Italy--Rome.
Harvard subject headings:
Princeton subject headings:
Callistus I, Pope, -approximately 222--Tomb.
Catacomba di Calepodio (Rome, Italy)
Christian antiquities--Italy--Rome.
Christian art and symbolism--Italy--Rome--Medieval, 500-1500.
Christian martyrs--Tombs--Italy--Rome.
Mural painting and decoration, Medieval--Italy--Rome.