Towns & cities
Couvin
City in Wallonia, Belgium
Wikipedia names Couvin 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 Couvin. Each title’s page links to the sentence that says so.
Filming locations nearby
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Streets & squares
Chemin de Fer à vapeur des Trois Valleés
Belgium · 5 km north-east
Heritage railway line in Belgium
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Towns & cities
Chimay
Belgium · 13 km west
Municipality in Wallonia, Belgium
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Towns & cities
Forges
Belgium · 13 km west
Section of Chimay, Wallonia, Belgium
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Towns & cities Cerfontaine
Belgium · 14 km north-west
Municipality in Wallonia, Belgium
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Towns & cities
Haybes
France · 16 km east
Commune in Ardennes, France
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Towns & cities
Fumay
France · 16 km south-east
Commune in Ardennes, France