The Top 5 Castles in Østfold
A visit to a castle — whether you stumble over one during a hike outdoors or walk your way around the grounds with a guide — is always something special, and you’ve got 5
beautiful castles to choose from in Østfold. Just browse our list to find your top castle , and add some history to your next adventure!
beautiful castles to choose from in Østfold. Just browse our list to find your top castle , and add some history to your next adventure!
Last updated: November 2, 2025
Fredrikstad Fortress
Highlight • Historical Site
The fortified town of Fredrikstad was one of the most important strongholds between Bohus Fortress (Båhus, today Sweden) and Akerhus Castle (Oslo) in the Middle Ages. During the Hannibal feud …
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Halden
Highlight • Settlement
Halden is a pleasant town located right on the Iddefjord, close to the Swedish border. Its most prominent feature is the historic Fredriksten Fortress situated on a hill overlooking the …
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Fredriksten Fortress
Highlight • Historical Site
The fortress, built between 1661 and 1701, was built to protect against Swedish attacks.
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View of Halden from Fredriksten Fortress
Highlight • Viewpoint
Great vantage point on the city of Halden and the surrounding area!
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Basmo Fortress
Highlight • Castle
This fortress is hidden in the forest. Cannons and good view.
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