Columbia subject headings:
Buildings--Germany--Kassel.
Gardens--Germany--Kassel--History.
Kassel (Germany)--History.
Parks--Germany--Kassel--History.
Parks--Germany--Kassel.
Harvard subject headings:
Gardens--Germany--Kassel--History.
Historic gardens--Germany--Kassel--History.
Parks--Germany--Kassel--History.
Princeton subject headings: