Towns & cities
Sieradz
Town on the Warta river in central Poland
Wikipedia names Sieradz as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Sieradz. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities Zduńska Wola
Poland · 14 km east
City and urban gmina of Poland
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Towns & cities Jeżew
Poland · 29 km north-east
Village of Poland
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Towns & cities
Piorunów, Łódź Voivodeship
Poland · 30 km north-east
Village in Łódź, Poland
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Towns & cities
Mianów
Poland · 33 km north-east
Village in Łódź, Poland
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Towns & cities
Dzierżanów (województwo łódzkie)
Poland · 38 km north-east
Village of Poland