Columbia subject headings:
Architecture--Europe--History--19th century.
Architecture--Europe--History--20th century.
Art nouveau (Architecture)--Europe.
Arts and crafts movement--Influence.
Decoration and ornament--Europe--Art nouveau.
Interior architecture--Europe.
Harvard subject headings:
Architecture, Modern--19th century--Europe.
Architecture, Modern--20th century--Europe.
Art nouveau (Architecture)--Europe.
Arts and crafts movement--Influence.
Decoration and ornament--Europe--Art nouveau.
Interior architecture--Europe.
Princeton subject headings: