https://en.wikipedia.org/wiki/Atlantis

The River Styx
https://en.wikipedia.org/wiki/Hades
https://en.wikipedia.org/wiki/Greek_underworld
https://www.telegraph.co.uk/news/worldnews/europe/greece/7924855/Alexander-the-Great-poisoned-by-the-River-Styx.html

Shambhala
https://en.wikipedia.org/wiki/Shambhala

Zerzura
https://en.wikipedia.org/wiki/Zerzura
https://en.wikipedia.org/wiki/Kitab_al_Kanuz
Scholomance
https://en.wikipedia.org/wiki/Scholomance

Norumbega
https://en.wikipedia.org/wiki/Norumbega

Dinas Affaraon
https://en.wikipedia.org/wiki/Dinas_Emrys#Dinas_Affaraon/Ffaraon
https://en.wikipedia.org/wiki/Dinas_Emrys

Eldorado
https://en.wikipedia.org/wiki/El_Dorado

Avalon
https://en.wikipedia.org/wiki/Avalon

The Garden of Eden
https://en.wikipedia.org/wiki/Garden_of_Eden