Fiction world for my book?

i need a SUPERNATURAL fictional world for my book. and please i don't want corny things like shadow world or underworld. if you have any in romanian it would be great(as this is a language i am using in my book) or any think that sounds old. and it doesn't have to include the word; world. it can be simply a name. please i need you help, and please serious answers only, no stupid things like hogwarts, i Truly need this for my book. thank :)