Columbia subject headings:
Historic buildings--Conservation and restoration--Belgium.
Land use--Belgium.
Monuments--Conservation and restoration--Belgium.
Harvard subject headings:
Architects--Belgium.
Architecture, Modern--19th century--Belgium.
Architecture--Belgium--History--19th century.
Monuments--Belguim--History--19th century.
Princeton subject headings:
Historic buildings--Belgium--Conservation and restoration.
Land use--Belgium.
Monuments--Belgium--Conservation and restoration.