Landmarks & buildings
Namsangol Hanok Village
Namsangol Hanok Village is named as a filming location of Sunny and Chi-hwa-seon by a published source, listed below with its publisher and its sentence. No wiki records a shoot here yet.

From published sources
Newspapers, film offices, archives and city filming permits say these were filmed at Namsangol Hanok Village. Each source is linked.
Filming locations nearby
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Landmarks & buildings
Chungmuro Station
South Korea · under 1 km
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Towns & cities
Seoul
South Korea · under 1 km
Capital and largest city of South Korea
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Landmarks & buildings
Dongguk University
South Korea · under 1 km
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Landmarks & buildings Seoul Jungbu Police Station
South Korea · under 1 km
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Landmarks & buildings
Myeong-dong Station
South Korea · under 1 km
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Towns & cities Myeong-dong
South Korea · 1 km north-west
Dong in Jung-gu, Seoul