Columbia subject headings:
Castles--Czechoslovakia--Pictorial works.
Czechoslovakia--Pictorial works.
Palaces--Czechoslovakia--Pictorial works.
Harvard subject headings:
Castles--Czechoslovakia--Pictorial works.
Czechoslovakia--Pictorial works.
Illustrated works
Palaces--Czechoslovakia--Pictorial works.
Pictorial works.
Princeton subject headings: