Kastellet, Stockholm

Kastellet is a small citadel located on the islet Kastellholmen in central Stockholm, Sweden.

The first fortification on the location was built in 1667 designed by Governor-general and Field marshal Erik Dahlbergh (1625–1703).

After the fleet moved to Karlskrona in 1680, the castle fell into disrepair [1] Kastellet exploded in June 1845 and subsequently was built 1846-1848 to the design of military officer and architect Fredrik Blom (1781–1853).

The tower and battery plane were then equipped with fast-firing anti-aircraft guns.

On the top of the Kastellet, the Military Ensign of Sweden is hoisted and lowered every day, indicating the nation is at peace.