Columbia subject headings:
Architecture, Domestic--Austria--Lichtenwörth.
Nadelburg (Lichtenwörth, Austria)--Buildings, structures, etc.
Villa Nadelburg (Lichtenwörth, Austria)
Harvard subject headings:
Castles--Austria--Lichtenwörth--History.
Nadelburg (Lichtenwörth, Austria)--Buildings, structures, etc.
Villa Nadelburg (Lichtenwörth, Austria)--History.
Princeton subject headings: