Land Without Color

One of the magic realms accessible by Jefferson's hat is the unnamed realm in which Dr. Victor Frankenstein lived. Though stated by Frankenstein that magic doesn't exist in his world, the fact that it can be reached by Jefferson's hat means it at least has a form of magic which isn't considered such by the doctor. Dr. Frankenstein may possibly be the Wizard of Oz and this realm may be the the Land of Oz, but this has not yet to be confirmed.