Columbia subject headings:
Archaeology, Medieval--Italy--Bergamo (Province)
Architecture, Medieval--Italy--Bergamo (Province)
Bergamo (Italy : Province)--Antiquities.
Castles--Italy--Bergamo (Province)
Excavations (Archaeology)--Italy--Bergamo (Province)
Fortification--Italy--Bergamo (Province)
Harvard subject headings:
Archaeology, Medieval--Italy--Bergamo (Province)
Architecture, Medieval--Italy--Bergamo (Province)
Bergamo (Italy : Province)--Antiquities.
Castles--Italy--Bergamo (Province)
Excavations (Archaeology)--Italy--Bergamo (Province)
Fortification--Italy--Bergamo (Province)
Princeton subject headings:
Archaeology, Medieval--Italy--Bergamo (Province).
Architecture, Medieval--Italy--Bergamo (Province).
Bergamo (Italy : Province)--Antiquities.
Castles--Italy--Bergamo (Province).
Excavations (Archaeology)--Italy--Bergamo (Province).
Fortification--Italy--Bergamo (Province).