Ключевые слова: abandoned, aerial, architectural, architecture, artificial, attraction, barracks, building, canal, caserne, copenhagen, danish, defense, denmark, destination, drone, elevated, flying, fort, fortification, fortress, harbor, harbour, high angle, historic, historical, history, horizon, island, landmark, lighthouse, marine, military, navy, oresund, protection, sea, sightseeing, sky, tour, tourism, tourist, travel, trekroner, trekroner fort, water,