Where was Harry Potter 20th Anniversary: Return to Hogwarts filmed?
reunion special of Harry Potter
Harry Potter 20th Anniversary: Return to Hogwarts (2022) was filmed in Warner Bros. Studio Tour London – The Making of Harry Potter — 1 recorded filming location in the United Kingdom. It is a filming-location statement on Wikidata, not a guess.
See them on the map → Wikipedia Source data
Filming locations
Also per Wikipedia's Filming section
Wikipedia’s Filming section names 1 more place. A sentence in an article is weaker evidence than a Wikidata statement, so these are listed apart, never mixed into the statement list, and the claim links straight to where it came from.
Frequently asked questions
How many filming locations does Harry Potter 20th Anniversary: Return to Hogwarts have?
1 place recorded on Wikidata, and 1 place named in its Wikipedia article, labelled per Wikipedia, across the United Kingdom.
Where does this information come from?
Filming location statements on Wikidata, plus places named in the production's own Wikipedia article, which are labelled per Wikipedia. Nothing is scraped from listicles and nothing is generated.