Built in the second half of the 18th century by Sweden on a group of islands located at the entrance of Helsinki’s harbour, this fortress is an especially interesting example of European military architecture of the time.

Year of Inscription: 1991

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Built in the second half of the 18th century by Sweden on a group of islands located at the entrance of Helsinki's harbour, this fortress is an especially interesting example of European military architecture of the time. Year of Inscription: 1991 Add world heritage to your travel plans - plan to...

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