Do the unsaved go to Hades? Are there different parts of Hades for believers and unbelievers?

This text is from a transcript of a talk by David Gooding, entitled ‘Documentary Evidence, Textual Criticism and Translation’ (2007).

The Greek word hadēs means, simply, 'the unseen, not visible' and therefore is used of what lies beyond the grave, beyond life in the unseen world. Therefore it is used in the Psalm quoted in Acts 2:27, 'Thou wilt not leave my soul in hades.'

And as to the two compartments, people find that in the story of the Rich Man and Lazarus, because of the 'great gulf fixed.' For my own part, I am just a little bit wary of being too certain about the geography (forgive the term) of the world to come. I think when God talks to us of the world to come, he makes it clear enough that we take it as real. But even in our own universe, when you come to the outer reaches of space and quantum physics and such things, it goes past our visualization even, and what that other world is like visually. All that is in the Bible is true, so long as we take it for the purpose for which it was given. We can trust God's metaphors and we should always remember that the things that are said about the geography of the world to come are, indeed, metaphors.