The Twelve Olympians were a group of Greek gods and goddesses that dwelt in Olympus, which travelled wherever it went, westly, and now stands above the Empire State Building in New York. The gods were, in a primary way, Zeus, Hera, Poseidon, Ares, Athena, Apollo, Demeter, Hephaestus, Hermes, Aphrodite, Artemis, and either Dionysus or Hestia. Hades was sometimes included as part of them, as a thirteenth member, but was not as he had permanently taken a dwelling within the Underworld. Otherwise, he was exluded from the Olympians.