Where was Suso's Tower filmed?

2007 film by Tomás Fernández

Suso's Tower (2007) was filmed in Mieres, Aller and Castrillón, 3 places named in its German Wikipedia’s Produktion section, in Spain. 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.

See them on the map → Wikipedia Source data

Places per German Wikipedia's Produktion section

German Wikipedia’s Produktion section names 3 places. Each links to the sentence that says so.