Bjarke Ingels Group’s (BIG) transformation of a former German WWII bunker into a cultural complex camouflaged among the protected dunes of Blåvand, western Denmark, has opened to the public. Conceived as “a sanctuary in the sand”, the 82,000sq m (882,600sq ft) museum, called Tirpitz, has been successfully completed three years after construction began. Upon arrival, visitors first see the bunker, which was one of hundreds of coastal defences and fortifications