koplingene
Koplingene is a term of Norwegian origin that translates to "the couplings" or "the connections." It most commonly refers to a series of interconnected tunnels and passages that form part of the underground defense system of Kristiansand, Norway. These fortifications were primarily built during World War II by the German occupying forces to strengthen the city's defenses and provide protected routes for troops and equipment.
The koplingene are integrated into the natural rock formations of the area and include various chambers, artillery
Today, certain sections of the koplingene are accessible to the public, often as historical attractions or