Columbia subject headings:
Gardens--Germany--Schleswig-Holstein--History.
Landscape architecture--Germany--Schleswig-Holstein--History.
Parks--Germany--Schleswig-Holstein--History.
Harvard subject headings:
Gardens--Germany--Schleswig-Holstein--History.
Historic gardens--Germany--Schleswig-Holstein.
Landscape architecture--Germany--Schleswig-Holstein--History.
Parks--Germany--Schleswig-Holstein--History.
Princeton subject headings: