Christiania is a very special place of Copenhagen, and known as a “free state” inside the city. The free state of Christiania was created at the beginning of the 70′s of the last century.
Rebellious teenagers occupied a piece of land which served as military area, after it was left by the Danish army. In the following years Christiania was characterized by a lot of riots between the official state of Denmark, and the unofficial free state of Christiania.

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A lot of discussions in the Danish parliament were involved in the question if Christiania should be removed and terminated, or if a free state inside Copenhagen should be accepted. At the end Danish politicans decided to legalize the project.
The free state of Christiania even has its own contracts for the power and water supply.