Introduction to the architecture of Kronborg Palace: Kronborg Palace is built of sandstone, surrounded by red brick walls, and has a copper roof. It is majestic and is the most exquisite Renaissance architectural style palace in Northern Europe at that time. When you look at Kronborg Palace from the strait, you will see three towers. The middle spire is called Kagerborg Tower, the one on the right is the Queen's Tower, and the tallest one on the left is the Horn Tower. During the "Nordic Seven Years' War", Kronborg Palace was occupied by Sweden for three years. The palace was destroyed and valuable cultural relics were looted. Since then, King Frederick IV has strengthened the defenses around Kronborg Palace, and the palace has been continuously repaired.