In Norse mythology, the final battle between gods and giants is called Ragnarök. This cataclysmic event signifies the end of the world and the death of several key gods, including Odin and Thor. Ragnarök is characterized by chaotic battles, natural disasters, and the rebirth of the world. This myth encapsulates themes of fate, renewal, and the cyclical nature of existence, illustrating how creation and destruction are intertwined in the cultural understanding of the universe's order.