The Greeks believed that gods and goddesses watched over them. The gods were like humans, but immortal  and much more powerful. A family of gods and goddesses lived in a cloud-palace above Mount Olympus, the highest mountain in Greece The gods looked down to watch what people were doing, and from time to time, interfered with what went on. The gods did not always behave very well. Their king, Zeus, was always being unfaithful to his wife Hera. He appeared on Earth as a human or an animal to trick women he had fallen in love with.