In the Underworld, realm of Hades.
Hades is a God, he is immortal. He does not die.
Hades lived in the underworld, over which he ruled. Hades does NOT live in Tartarus. He lives in the underworld, but only few people know specifically- Like the dead. :)
Poseidon had a palace on Olympus, but Hades did not.
Hades is the God of the Underworld. He still resides there.
The Underworld.
The Underworld.
Yes, Zeus does live on Mount Olympus and Hades does live in the Underworld, and controls it.
No, Hades is King of, and dwells in, the Underworld.
Upon the Earth, by the way, the Underworld existed before Hades.
Because he is the God of the Underworld.
Near the palace of Hades.