Columbia subject headings:
Church architecture--Germany--Harz Mountains Region.
Convents--Germany--Harz Mountains Region.
Dannowski, Hans Werner--Travel--Germany--Harz Mountains Region.
Monasteries--Germany--Harz Mountains Region.
Harvard subject headings:
Church architecture--Germany Harz Mountains Region.
Convents--Germany--Harz Mountains Region.
Dannowski, Hans Werner--Travel--Germany--Harz Mountains Region.
Monasteries--Germany--Harz Mountains Region.
Princeton subject headings: