Castles & palaces
Herrenchiemsee
Complex of royal buildings on Herreninsel, an island in the Chiemsee, Bavaria's largest lake, 60 km south east of Munich
1 film or series was filmed at Herrenchiemsee. Wikipedia names 3 more.

Movies filmed at Herrenchiemsee
The Three MusketeersAction film2011
Filmed here, per Wikipedia
Wikipedia says these were filmed in Herrenchiemsee too. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities
Herreninsel
Germany · under 1 km
2.3 square kilometre island in Bavaria's largest lake, the Chiemsee
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Towns & cities
Prien am Chiemsee
Germany · 4 km west
Market municipality in the district of Rosenheim, in Bavaria, Germany
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Landscapes & nature
Chiemsee
Germany · 6 km north-east
Freshwater lake in Bavaria, Germany
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Landmarks & buildings
Hochfellnseilbahn
Germany · 16 km south-east
Building in Germany
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Landscapes & nature
Chiemgau Alps
Germany · 19 km south-east
Mountain range in the Northern Limestone Alps
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Towns & cities Rosenheim
Germany · 20 km west
City in Upper Bavaria, Bavaria, Germany