Columbia subject headings:
Mountains in art--Exhibitions.
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879--Exhibitions.
Harvard subject headings:
Mountains in art--Exhibitions
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879--Exhibitions.
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879--Journeys--Europe--Exhibitions.
Princeton subject headings:
Mountains in art.
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879.