Where was I as in Icarus filmed?

1979 film by Henri Verneuil

I as in Icarus (1979) was filmed in Paris, La Défense, Cergy, 14th arrondissement of Paris, Val-de-Grâce, Cergy-Pontoise and 5 more places, 11 places named in its Wikipedia article, in France. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data