Copenhagen's Most Expensive Apartment: Welcome to a 250-square-meter duplex apartment, spanning two floors, featuring a private office, a private gym, a large kitchen with a wine cooler, and a 35-square-meter private balcony overlooking the water and the royal residence of the King and Queen in Copenhagen. The apartment has 4 bedrooms and is located on Amaliegade in central Copenhagen. It is absolutely fantastic, right in the heart of everything.