Hephaestus was the Greek god of technology, blacksmiths, craftsmen, artisans, sculptors, metals, metallurgy, fire and volcanoes. Hephaestus' Roman equivalent was Vulcan. In Greek mythology, Hephaestus was the son of Zeus and Hera, the King and Queen of the Gods. As a smithing god, Hephaestus made all the weapons of the gods in Olympus. He served as the blacksmith of the gods, and was worshipped in the manufacturing and industrial centres of Greece, particularly Athens. The cult of Hephaestus was based in Lemnos. Hephaestus's symbols are a smith's hammer, anvil, and a pair of tongs. Hephaestus is given many epithets. The meaning of each epithet is: Hephaestus had his own palace on Olympus, containing his workshop with anvil and twenty bellows that worked at his bidding.