The realm of the dead ruled over by Hades and Persephone which featured prominently in Greek mythology.
Hades: The God of the Underworld who is also known as Pluto in Roman mythology. He was the brother of Zeus and Poseidon and was said to rule over the dead souls.
Persephone: The Queen of the Underworld, who is also known as Kore. She was the daughter of Demeter, the goddess of agriculture, and was kidnapped by Hades to become his wife.
Cerberus: The three-headed dog that guarded the entrance to the Underworld.
River Styx: The river that separated the world of the living from the world of the dead in Greek mythology. It was believed that the souls of the dead had to cross the river to reach the Underworld.
Elysian Fields: The section of the Underworld where the souls of the heroic and virtuous were said to reside after their death.
Tartarus: The deepest, darkest part of the Underworld where the most wicked and evil souls were said to be imprisoned for eternity.
Charon: The ferryman who would transport the souls of the dead across the River Styx to the Underworld.
Furies: The three goddesses of vengeance who were said to punish wrongdoers in the Underworld.
Shades: The souls of the dead who resided in the Underworld.
Orpheus and Eurydice: The tragic tale of Orpheus, who traveled to the Underworld to rescue his wife Eurydice from death.
The Labors of Heracles: The hero Heracles had to descend to the Underworld as one of his twelve labors to retrieve the three-headed dog Cerberus.
Sisyphus: The story of Sisyphus, who was punished in the Underworld with the eternal task of rolling a boulder up a hill, only to have it roll back down again.
The Judgment of the Dead: The belief that a person's soul would be judged by the gods after their death and sent to either the Elysian Fields or Tartarus depending on their deeds in life.
Meleager and the Fates: The tale of Meleager, who was fated to die once a log on his hearth had burned completely. His mother, who had been gifted the log, tried to prevent his death by putting out the fire, but the Fates intervened and Meleager died.
The Underworld in Literature: The depiction of the Underworld in various works of literature, including Homer's Odyssey, Virgil's Aeneid, and Dante's Inferno.
Symbols of the Underworld: The various symbols associated with the Underworld, including skulls, bones, and serpents.
Tartarus: The deepest level of the underworld, reserved for the worst of sinners and enemies of the gods.
Elysium: The resting place of the virtuous and heroic souls.
Asphodel Meadows: The neutral area where ordinary souls reside.
Fields of Punishment: The place where souls are punished for their wrongdoing.
River Styx: The river that separates the world of the living from the underworld.
River Acheron: The river that souls must cross to reach the underworld.
River Lethe: The river of forgetfulness that causes souls to forget their past lives.
Cocytus: The river of wailing and lamentation.
Erebus: The area where the dead first arrive in the underworld.
Isles of the Blessed: A paradise reserved for the most righteous and pure souls.