Kastellet
After the old fort on the site was undermined by a Swedish attack in 1658, King Frederik III ordered the construction of Kastellet in Copenhagen in 1663. It was largely reconstructed again in the nineteenth century as a jail, with the distinctly star-shaped building flanked by a moat.
During World War II, German forces utilized Kastellet as a base when occupying Copenhagen. Kastellet is now a military facility. Its grounds have been turned into a park that is open to the public, while there is no access to the fortification's interior.
The Citadel is still a working military base for the Danish Defense Ministry. Despite the area's ongoing military presence, the Citadel is now a calm, protected location that serves as a public park as well as a cultural-historical landmark. The location features two modest museums with limited hours of operation.
Every day at 12:00, the Central Guard House hosts a changing of the guard ceremony. On summer afternoons at 14.00, military concerts are held at the drill grounds. Concerts are also routinely organized by the Citadel Church.
