Columbia subject headings:
Harvard subject headings:
Architecture, Modern--19th century
Architecture, Modern--21st century
Art nouveau
Decoration and ornament, Architectural.
Decoration and ornament--Art nouveau
Princeton subject headings:
Decoration and ornament, Architectural.
Decoration and ornament--Art nouveau.
Decoration and ornament--Germany (West)--Darmstadt--History--19th century.
Decoration and ornament--History--20th century.
Decoration and ornament--Scotland--Glasgow--History--19th century.
Wiener Secession.