The 16-story Copper Tower (Kobbertårnet) stands at the northern entrance to Copenhagen Harbor. Over the years, the distinctive building with rounded corners will change appearance. As the salty winds from the Sound meet the façade’s copper, its color gradually changed from its original flaming red to a more subdued dark brown in late 2005. In the course of the next score of years, large parts of the façade will turn the characteristic verdigris familiar from other towers and roofs in Copenhagen. The concept of a copper tower was part of the unified plan for the North Harbor conceived by the Dutch architect Adriaan Geuze, who originally dreamed of a “tower of towers” to rise high above the harbor and consequently expand the copper-covered part of Copenhagen’s skyline.