|Excavated out of the soft volcanic
terrain the galleries stretch out for approximately 13 kilometers
in an irregular pattern. At times the one comes upon a cubicle which
was used as a family or group tomb or for the burial of a martyr.
The bodies of the deceased, simply wrapped in a shroud, were laid
in the loculi, narrow rectangular tombs carved out of the gallery
walls. These loculi were sealed using marble or terracotta slabs.
Today these slabs are no longer in situ due to the almost complete
spoliation of the galleries in the past. Some fragments of these stones
with their Latin or Greek inscriptions can be seen on the walls of
Between the loculi one can still see the small holes
that were for oil lamps that illuminated the passages of the cemetery.