The Greek god of the heavens is Zeus, who is often depicted as a powerful figure with a lightning bolt in his hand. He is the king of the gods and the ruler of Mount Olympus. He is the son of Cronus and Rhea, and is married to Hera. He is the god of the sky, thunder, lightning, law, order, and justice. He is also the god of hospitality, hospitality being an important part of ancient Greek culture.