Where was The Third Day filmed?
2020 TV miniseries
The Third Day (2020–) was filmed in Isle of Sheppey, Isle of Grain and Chislehurst Caves, 3 places named in its Wikipedia article's Production section, in the United Kingdom. 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.
Places per Wikipedia's Production section
Wikipedia’s Production section names 3 places. Each links to the sentence that says so.
