The Gargoyle Golden Gate Bridge is the Capilano suspension bridge near Vancouver.
At one point Wade Welles states that her friend Sabrina was into witchcraft and the occult. While Sabrina Lloyd plays Wade Welles, this is actually a reference to Sabrina the Teenage Witch.
The inside of The Sorcerer's castle is the Orpheum Theatre in Vancouver, which is also the same location of the opera house in Battlestar Galactica (2004).
Another reference to the Wizard of Oz is Mr. Gale, as in Dorothy Gale from Kansas.
On Mystic World, Edward D. Wood Jr. is considered one of the greatest Presidents in American history. He had died by 1996.