Columbia subject headings:
Habsburg, House of--Homes and haunts--Austria--Vienna.
Historic buildings--Austria--Vienna--History.
Hofburg (Vienna, Austria)
Palaces--Austria--Vienna--History.
Vienna (Austria)--Buildings, structures, etc.
Harvard subject headings:
Habsburg, House of--Homes and haunts--Austria--Vienna.
Historic buildings--Austria--Vienna--History.
Hofburg (Vienna, Austria)
Hofburg (Vienna, Austria)--History.
Palaces--Austria--Vienna--Design and construction.
Palaces--Austria--Vienna--History.
Vienna (Austria)--Buildings, structures, etc.
Princeton subject headings:
Habsburg, House of--Homes and haunts--Austria--Vienna.
Historic buildings--Austria--Vienna--History.
Hofburg (Vienna, Austria)
Palaces--Austria--Vienna--History.
Vienna (Austria)--Buildings, structures, etc.