Narnia or Middle-Earth… I believe they count as a fictional universe? Unless, one of you have found Narnia at the back of your wardrobe (I never did…).
Why? Because they sound amazing places… I don’t know how he did it but Peter Jackson “created” Middle-Earth exactly how I imagined it would be; even though I discovered “The Hobbit” many years before the films. I’ve yet to see any of the current Narnia movies but do remember an old series on ITV (outside UK readers it’s one of our main channels) when I was small of “The Lion, The Witch & The Wardrobe”, “Prince Caspian” and “The Voyage Of The Dawn Treader”.