Towns & cities
Castrillón
Municipality (concejo) in Asturias, Spain
Wikipedia names Castrillón 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 Castrillón. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landmarks & buildings Ferrera Palace
Spain · 6 km east
Palace in Spain
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Towns & cities
Avilés
Spain · 6 km east
City and municipality in Asturias, Spain
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Towns & cities Illas
Spain · 6 km south
Municipality in Asturias, Spain
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Towns & cities
San Esteban
Spain · 8 km west
Parish (parroquia) in Muros de Nalón, Asturias, Spain
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Towns & cities
Pravia
Spain · 12 km south-west
Municipality (concejo) in Asturias, Spain
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Towns & cities
Carreño
Spain · 16 km east
Municipality of Asturias, Spain