Columbia subject headings:
Architecture--Europe--History--18th century.
Architecture--Europe--History--19th century.
Architecture--Europe.
Art, European--18th century.
Art, European--19th century.
Art, European.
Harvard subject headings:
Architecture, Modern--17th-18th centuries--Europe.
Architecture, Modern--19th century--Europe.
Architecture--Europe
Art, European
Art, Modern--17th-18th centuries--Europe.
Art, Modern--19th century--Europe.
Princeton subject headings:
Architecture, Modern--18th century.
Architecture, Modern--19th century.
Architecture--Europe.
Art, European--18th century.
Art, European--19th century.