Where was The Five Days filmed?

1973 film by Dario Argento

The Five Days (1973) was filmed in Milan, Pavia, Arcore, Belgioioso Palace, Casa degli Omenoni, San Teodoro, Pavia and 4 more places, 10 places named in its Wikipedia article, in Italy. 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