Kastellet, Military citadel on Kastellholmen islet, Stockholm, Sweden
The round tower fortress features red brick walls and rises 20 meters high with a distinctive stair tower on Kastellholmen island.
Originally constructed in 1667 under Erik Dahlbergh's design, the fortress experienced an explosion in 1845 and underwent complete reconstruction from 1846 to 1848.
The Swedish Military Ensign is raised and lowered daily at the tower's summit, symbolizing the nation's current state of peace.
Visitors can explore the historical buildings, monuments, and waterfront paths while learning about Sweden's maritime defense through guided educational tours.
During World War II, the castle returned to military service when Stockholm installed rapid-fire anti-aircraft weapons on its tower and battery plane.
GPS coordinates: 59.32261,18.09015
Latest update: March 11, 2025 18:28
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