Concept art for Kiamo Ko castle support pillars in 'Wicked: For Good' Universal Pictures As the returning production designer from the first film, Nathan Crowley had a lot of new areas to explore in Wicked: For Good. From the seemingly floating castle Kiamo Ko to Elphaba’s forest hideaway, and even new locations within The Emerald City like Glinda’s apartment, Crowley’s work in the second film focuses more on expanding the world of Oz past Shiz University. “The story takes off, and we go on these incredible epic journeys,” says Crowley.