If you could create a world of your own what would be in it?

Would there be unicorns, Gypsy’s, fairytale feel, or would it be med-evil time.? or 1800’s  or circus’s theme hmm…  I’m gonna create my own world that’s another dimension, but some what realistic…. LOL  I would have like the  20’s meets the circus, meets, fairy tales, meets, harry potter with vampires, and masqaurades lol