The brick road leading to the Emerald City is yellow.
Dorothy follows the Yellow Brick Road after Glinda directs her toward the Emerald City, where she hopes the Wizard can help her return to Kansas. The road winds through Oz and connects several of the film’s major locations, making it both a literal route and the visual spine of the story.
The road is especially memorable because it contrasts with the gray Kansas opening. Once Dorothy reaches Oz, the film expands into color, and the bright yellow path becomes one of the most recognizable images in movie history.
The Yellow Brick Road originates in Baum’s 1900 novel, although the movie’s vivid Technicolor presentation made it iconic. A related detail often overlooked is that Dorothy travels with the Scarecrow, Tin Man, and Cowardly Lion, each of whom hopes the Wizard will grant a personal wish.