afterworld vs mythical place

afterworld and mythical place both are nouns.

Word	Noun	Adjective	Verb	Adverb
afterworld	Yes	No	No	No
mythical place	Yes	No	No	No

As nouns, mythical place is a hypernym of afterworld; that is, mythical place is a word with a broader meaning than afterworld:

afterworld: the place where you are after you die
mythical place: a place that exists only in imagination; a place said to exist in fictional or religious writings

Other hypernyms of afterworld include fictitious place, imaginary place.

afterworld (noun)	mythical place (noun)
the place where you are after you die	a place that exists only in imagination; a place said to exist in fictional or religious writings