Columbia subject headings:
Architecture--Germany--History--19th century.
Architecture--Germany--History--20th century.
Castles--Conservation and restoration--Germany.
Castles--Conservation and restoration--Rhine River Valley.
Gothic revival (Architecture)--Germany.
Gothic revival (Architecture)--Rhine River Valley.
Harvard subject headings:
Architecture, Modern--19th century--Germany.
Architecture, Modern--20th century--Germany.
Castle--Reconstruction--Germany--Rhineland.
Castles--Germany--Conservation and restoration.
Castles--Germany--Rhineland--Reconstruction.
Castles--Reconstruction--Germany--Rhineland.
Castles--Rhine River Valley--Conservation and restoration.
Gothic revival (Architecture)--Germany.
Gothic revival (Architecture)--Rhine River Valley.
Nationalism and architecture--Germany--Rhineland.
Princeton subject headings:
Castle--Reconstruction--Germany--Rhineland.
Nationalism and architecture--Germany--Rhineland.