Columbia subject headings:
Architecture, Baroque--Italy--Palermo.
Architecture--Conservation and restoration.
City planning--Italy--History.
City planning--Italy--Palermo--History.
Harvard subject headings:
City planning--Italy--Palermo--History--16th century.
City planning--Italy--Palermo--History--17th century.
Classicism in architecture--Italy--Palermo.
Palermo (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architecture--Italy--Palermo (Italy)--Conservation and restoration.
City planning--Italy--Palermo.