Columbia subject headings:
Bridges--Italy--Venice.
Venice (Italy)--Buildings, structures, etc.
Harvard subject headings:
Bridges--Italy--Venice--Design and construction.
Bridges--Italy--Venice--History.
Bridges--Italy--Venice.
Venice (Italy)--Buildings, structures, etc.
Princeton subject headings:
Bridges--Italy--Venice--Design and construction.
Bridges--Italy--Venice--History.