Landscapes & nature
Ikaho Onsen
Building in Gunma Prefecture, Japan
Wikipedia names Ikaho Onsen 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 Ikaho Onsen. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landscapes & nature
Mount Haruna
Japan · 5 km south-west
Mountain in Gunma Prefecture, Japan
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Towns & cities Shibukawa
Japan · 6 km east
City in Gunma Prefecture, Japan
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Towns & cities
Nakanojō
Japan · 13 km north-west
Town in Agatsuma District, Gunma Prefecture, Japan
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Towns & cities Haruna
Japan · 13 km south
Dissolved municipality in Gunma district, Gunma prefecture, Japan
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Landmarks & buildings
Gunma Prefectural Government Building
Japan · 17 km south-east
Building in Maebashi, Gunma Prefecture, Japan
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Landmarks & buildings 群馬県立前橋商業高等学校
Japan · 19 km south-east