Where was The Agony and the Ecstasy filmed?

1965 film by Carol Reed

The Agony and the Ecstasy (1965) was filmed in Rome, Todi, Seravezza, Cinecittà, Apuan Alps and piazza del Popolo, 6 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.

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