Fortress
Middelgrundsfortet
🇩🇰 Denmark · 19th century
Middelgrundsfortet (lit. 'Fort Middle Ground'), known as Ungdomsøen (The Youth Island) since 2015, is a sea fort located on an artificial island in the Øresund between Copenhagen and Malmö. The fortress is constructed at a point where the seabed is 7 meters below the water surface at the northern meeting point of the straits Kongedybet and Hollænderdybet. Ferries connect Middelgrundsfortet with Langelinie, Copenhagen.
The fort was constructed in the 1890s as a military instalment, and had an active military presence until 1984. The island was sold by the state to a private investor in 2002 and was transformed into a hotel, with 200 rooms linked by 2 miles of corridors. In 2015, the island was jointly purchased by two scout organisations and is now used as a camp for children and young people as Ungdomsøen.
Text adapted from “Middelgrundsfortet” on Wikipedia, CC BY-SA 4.0.
Middelgrundsfortet ranks #2,204 of 8,133 worldwide in the atlas's castle fame ranking, and #30 of the 53 mapped in Denmark. Founded c. 1895 — one of 607 atlas entries founded in the 19th century. Its Wikipedia articles were opened 2,470 times in the last 60 days, more than 71% of the atlas. 19 more atlas landmarks stand within 25 km. The nearest day-trip guide is Copenhagen, 8 km away. See how Denmark compares in the castle statistics.
View on the interactive castle map →Frequently asked questions
Where is Middelgrundsfortet?
Middelgrundsfortet stands in Denmark, at 55.72028°, 12.66583°.
When was Middelgrundsfortet built?
The atlas dates its founding to c. 1895. Earlier structures may have stood on the site; this is the earliest documented founding year.
How famous is Middelgrundsfortet?
In this atlas's fame ranking: #2,204 of 8,133 worldwide, and #30 in Denmark. Fame here combines how many Wikipedia language editions cover a landmark with how many people read them.
What is the nearest castle to Middelgrundsfortet?
Trekroner Fort, about 4 km away.
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