Towns & cities
Castel San Pietro Romano
Italian comune
Wikipedia names Castel San Pietro Romano as where 3 films and series were filmed; each title’s page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Castel San Pietro Romano. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities
Palestrina
Italy · 1 km south
Comune in Lazio, Italy
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Towns & cities
Capranica Prenestina
Italy · 5 km north-east
Italian comune
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Towns & cities San Gregorio da Sassola
Italy · 8 km north
Italian comune
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Towns & cities
Pisoniano
Italy · 9 km north-east
Italian comune
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Towns & cities San Vittorino
Italy · 12 km north-west
11th zone of Rome, Italy
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Towns & cities
Artena
Italy · 13 km south
Italian comune