Olavinlinna “Sankt Olofsborg” in eastern Finland…

For #FortressesFriday, curated by +Benjamin Dahlhoff. Olavinlinna "Sankt Olofsborg" in eastern Finland. It's the northernmost 15th century medieval stone fortress still standing. http://en.wikipedia.org/wiki/Olavinlinna´╗┐ This was posted on Google+

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