Landmarks & buildings
Duksung Women's University
Private university in Seoul, South Korea
Wikipedia names Duksung Women's University 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 Duksung Women's University. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landmarks & buildings
Seoul Hansin Elementary School
South Korea · 1 km east
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Towns & cities
Gangbuk District
South Korea · 1 km south-east
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Towns & cities
Ui-dong
South Korea · 2 km north-west
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Landscapes & nature
Bukhansan
South Korea · 2 km north-west
Mountain in Seoul, Gyeonggi-do, South Korea
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Towns & cities
Chang-dong
South Korea · 2 km east
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Landmarks & buildings
Doseonsa
South Korea · 2 km west
Buddhist temple of the Jogye Order in Seoul, South Korea
What Wikipedia says about Duksung Women's University
One sentence quoted word for word from Wikipedia, with the production it describes and a link to the article it comes from.
Guardian: The Lonely and Great God 2016–2017
“Goblin and Grim Reaper's house (external shots) was filmed at (formerly) Unhyeongung's Western House, presently inside Duksung Women's University (utilized for administration offices).” Wikipedia