Elysium vs fictitious place

Elysium and fictitious place both are nouns.

Word	Noun	Adjective	Verb	Adverb
Elysium	Yes	No	No	No
fictitious place	Yes	No	No	No

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

Elysium: a place or condition of ideal happiness
fictitious place: a place that exists only in imagination; a place said to exist in fictional or religious writings

Other hypernyms of Elysium include imaginary place, mythical place.

Elysium (noun)	fictitious place (noun)
(Greek mythology) the abode of the blessed after death	a place that exists only in imagination; a place said to exist in fictional or religious writings
a place or condition of ideal happiness