Columbia subject headings:
Church architecture--Italy--Iblei Mountains Region.
Harvard subject headings:
Architecture, Baroque--Italy--Iblei Mountains Region.
Architecture, Renaissance--Italy--Iblei Mountains Region.
Church architecture--Italy--Iblei Mountains Region.
Princeton subject headings:
Architecture, Baroque--Italy--Iblei Mountains Region.
Architecture, Renaissance--Italy--Iblei Mountains Region.
Church architecture--Italy--Iblei Mountains Region.