Columbia subject headings:
Architecture--Belgium--History--19th century.
Art nouveau (Architecture)--Belgium.
Art nouveau--Belgium.
Decoration and ornament--Art nouveau.
Harvard subject headings:
Architecture, Modern--19th century--Belgium.
Architecture, Modern--Belgium.
Art nouveau (Architecture)--Belgium.
Art nouveau--Belgium.
Decoration and ornament--Art nouveau
Princeton subject headings:
Architecture--Belgium--19th century.
Architecture--Belgium--20th century.
Art nouveau (Architecture)--Belgium.
Decoration and ornament, Architectural--Belgium.
Decoration and ornament--Belgium--Art nouveau.