Columbia subject headings:
Cave churches--Italy--Syracuse (Province)
Christian antiquities--Italy--Syracuse (Province)
Italy--Antiquities.
Syracuse (Italy : Province)--Antiquities, Byzantine.
Syracuse (Italy : Province)--Antiquities.
Harvard subject headings:
Christian antiquities--Italy--Syracuse (Province)
Syracuse (Italy : Province)--Antiquities, Byzantine.
Princeton subject headings:
Cave churches--Italy--Sicily.
Excavations (Archaeology)--Italy--Sicily.
Syracuse (Italy : Province)--Antiquities.
Syracuse (Italy)--Antiquities.