Frihavnen

The Free Port of Copenhagen is a bonded area in the northern part of Harbour of Copenhagen, Denmark. Created to consolidate Copenhagen's position as an important maritime hub in Northern Europe, it was established in the area just north of the fortress Kastellet and later expanded northwards several times. The original grounds, now known as Søndre Frihavn (English: South Free Port), has since been released for other uses. It comprised Amerika Plads, a modern mixed-use development, America Quay, India Quay, Langelinie and Marble Pier, the four quays which bounded the harbour, and Midtermolen, a pier which divides it into an east and west basin.

The free port is now located in Nordhavnen and is part of Copenhagen Malmö Port.

In the middle of the 19th century, Copenhagen's growth and the increasing industrialization made it clear that the city's harbour was becoming too small and in the same time old plans to create a free port were revitalized. In a plan from 1862 it was decided to dig out the area to allow access for the largest ocean-going wessels and use the materials removed for land fills along the coast. A suggestion to make all of Amager into a duty-free zone was abolished and instead it was decided to create a free port in the area in the Svanemølle Bay north of the fortress Kastellet. Construction began in 1891, prompted by Germany's construction of the Kiel Canal that was begun in 1887 and threatened Copenhagen's position.

...
Wikipedia