Columbia subject headings:
Cultural property--France--History--20th century.
Historic buildings--France.
Memorialization--France.
War photography--France.
World War, 1914-1918--Destruction and pillage--France.
Harvard subject headings:
Cultural property--France--History--20th century.
Memorialization--France--History--20th century.
Ruins, Modern--France--History--20th century.
World War, 1914-1918--Battlefields--France
World War, 1914-1918--Destruction and pillage--France.
World War, 1914-1918--Photography.
Princeton subject headings:
Cultural property--France--History--20th century.
Memorialization--France--History--20th century.
Ruins, Modern--France--History--20th century.
World War, 1914-1918--Battlefields--France.
World War, 1914-1918--Destruction and pillage--France.
World War, 1914-1918--Photography.