Columbia subject headings:
Aargau (Switzerland)--Pictorial works.
Architecture, Domestic--Switzerland--Aargau--Pictorial works.
Castles--Switzerland--Aargau--Pictorial works.
Historic buildings--Switzerland--Aargau--Pictorial works.
Harvard subject headings:
Aargau (Switzerland)--Pictorial works.
Architecture, Domestic--Switzerland--Aargau--Pictorial works.
Castles--Switzerland--Aargau--Pictorial works.
Historic buildings--Switzerland--Aargau--Pictorial works.
Princeton subject headings: