Columbia subject headings:
Castles--Germany--Thuringia--Guidebooks.
Palaces--Germany--Thuringia--Guidebooks.
Thuringia (Germany)--Buildings, structures, etc.--Guidebooks.
Harvard subject headings:
Architecture, Domestic--Germany--Thuringia--History.
Architecture, Domestic--Germany--Thuringia--Pictorial works.
Art and architecture--Germany--Thuringia--History.
Castles--Germany--Thuringia--History.
Cultural property--Germany--Thuringia--History.
Palaces--Germany--Thuringia--History.
Royal gardens--Germany--Thuringia--History.
Royal houses--Germany--Thuringia--History.
Thuringia (Germany)--Kings and rulers--Homes and haunts--History.
Princeton subject headings: