Where was The Day of the Owl filmed?

1968 film by Damiano Damiani

The Day of the Owl (1968) was filmed in Rome, Palermo and Partinico, 3 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