Columbia subject headings:
Architecture--France--Loire River Valley--Pictorial works.
Castles--France--Loire River Valley--Pictorial works.
Loire River Valley (France)--Pictorial works.
Harvard subject headings:
Architecture--France--Loire River Valley--Pictorial works.
Castles--France--Loire River Valley--Pictorial works.
Loir River Valley (France)--Pictorial works.
Pays de la Loire (France)--Pictorial works.
Princeton subject headings:
Architecture--France--Loire River Valley--Pictorial works.
Castles--France--Loire River Valley--Pictorial works.
Loire River Valley (France)--History.
Loire River Valley (France)--Pictorial works.