Since the early 21^st century, world-building has become more visible as imaginary worlds move into mainstream entertainment, leading to an exciting and emerging field of world- building studies. The purpose of this study is to explore the imaginary world of The Little Prince novella, a significant literary work by Antoine de Saint-Exupéry, through its non- narrative structures and its narrative. The entire text was extracted for data collection and analysis. The types of secondary world infrastructures identified were space, time, characters, nature, culture, language and philosophy. These infrastructures were found to form the imaginary world by constituting its locations, temporality, populations, materiality, customs, mode of communication and truths. The physical events and the mental events of the dynamic component of the storyworld were found to form the world through the progression of the narrative in the wide frames of past and present, as well as through the narrow frame. This study has implications for the type of works examined and the method employed in world-building studies, as well as for creative writing, content creation and literature education.