Where was Quo Vadis (1924) filmed?

1924 film by Georg Jacoby, Gabriellino D'Annunzio

Quo Vadis (1924) was filmed in Rome, 1 place named in its German Wikipedia’s Produktionsnotizen section, 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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