Frederiksborg Castle arguably the most beautiful castle in Denmark. The castle was originally a private manor, and later the king exchanged the manor for a forest monastery in order to please the queen. Unlike most of Europe's cold-colored castles, it is decorated with red bricks with green roofs. The three main buildings of the castle are churches, castles and palaces. They are arranged on three sides in a square. The Queen's Corridor, which is connected to the three main buildings, was later rebuilt for the Queen, and experienced many wars and fires, but fortunately was rebuilt and built many times. It has become the national museum of Denmark.