The article examines the imaginary geography of Jerzy Żuławski's The Lunar Trilogy – On the Silver Globe (1903), The Conqueror (1910), and The Old Earth (1911) – focusing on the relationship between the author's modernist sensibilities and the trilogy's adoption of the nascent science fiction genre. While modernism and popular fiction are usually placed on opposite ends of the literary spectrum, the example of Żuławski demonstrates that popular fiction was a valuable tool for modernist authors who sought to overcome the limits of realist conventions but were reluctant to alienate the mass readership. Drawing inspiration from the broadly-conceived spatial turn in the humanities, the article positions Żuławski and his work within the literary tradition that utilizes the romance mode (as defined by Northrop Frye, Fredric Jameson, and others) to reflect on modern subjectivity and its relations with what Max Weber called the “disenchanted world.”