Columbia subject headings:
Architecture--Europe, German-speaking--History--20th century.
Architecture--Europe, German-speaking--History--21st century.
Hotels--Europe, German-speaking--History--20th century.
Hotels--Europe, German-speaking--History--21st century.
Harvard subject headings:
Architecture--Europe, German-speaking--History.
Hotels--Europe, German-speaking--History--20th century.
Hotels--Europe, German-speaking--History--21st century.
Hotels--Germany--Designs and plans.
Princeton subject headings: