Columbia subject headings:
Architecture.
Wittgenstein, Ludwig, 1889-1951--Homes and haunts.
Wittgenstein, Ludwig, 1889-1951--Knowledge and learning.
Harvard subject headings:
Haus Wittgenstein ((Vienna, Austria).
Kundmanngasse 19 (Vienna, Austria)
Mansions--Vienna--Austria.
Stonborough-Wittgenstein, Margarethe, 1882-1958--Homes and haunts.
Wittgenstein, Ludwig, 1889-1951--Homes and haunts.
Wittgenstein, Ludwig, 1889-1951--Knowledge--Architecture.
Princeton subject headings:
Haus Wittgenstein (Vienna, Austria)
Wittgenstein, Ludwig, 1889-1951--Homes and haunts--Austria--Vienna.