The Tirpitz position (Batterie Vogelnest) is a second World War II defense consisting of two bunkers, which were part of the Atlantic Empire, which the German occupying forces built along the North Sea coasts. They are located on Tane Hedevej in Blaavand. The southern bunker is today designed as a museum with a real museum building under the cliff as a supplement. https://da.wikipedia.org/wiki/Tirpitz-stillingen