Religion in ancient Greece, Cult (religious practice), Zeus, Hera, Poseidon, Apollo, Artemis, Aphrodite, Ares, Dionysus, Hephaestus, Athena, Hermes, Demeter, Hestia, Hades, Etruscan mythology, Twelve Olympians, Greek underworld, Twelve Olympians, Greek underworld, Animal sacrifice, Greek temple, Decline of Hellenistic polytheism, Hellenic Polytheistic Reconstructionism, Titan (mythology, Titanomachy