Kastellet - officially Citadellet Frederikshavn - is a 17th-century star fortress and one of the best-preserved military fortifications in Northern Europe. Christian IV began construction in 1624, and after the Swedish siege of Copenhagen in 1658-60, Dutch engineer Henrik Rüse rebuilt and extended it into its current pentagonal form. Within the ramparts stand the Citadel Church (1704) and a still-functioning windmill. The site remains an active military area but is also open to the public as a park and historic monument.
Kastellet 1, 2100 København Ø
Opening hours follow the event programme
Official flag day for Denmark's deployed personnel, featuring a ceremony, parade, and speeches at the Monument in Citadellet.
Culture Night at Citadellet features 20 different activities for the whole family across the fortress grounds.
Kastellet marks its birthday with cannon salutes, live music, and open museums. Don't miss "War on Kirkepladsen" on the square.
Denmark's Veterans' Memorial Day is observed at Citadellet with a memorial service and wreath-laying ceremony honoring veterans and their families.
The season's last summer concert at Citadellet features Tappenstreg performing intimate music close to the audience.
A running race through Citadellet where entry fees benefit veterans and their loved ones.
Ronny & Ragge perform at Citadellet in Copenhagen.