A white train, bathed in the warm glow of its headlights, speeds through an underground city that captures the essence of both fire and ice, creating a surreal scene. As it moves, sparks and white smoke envelop the train, mimicking a mysterious world akin to scenes from “Game of Thrones” or “The Expanse.” Behind it, the backdrop of ancient, white stone buildings adorned with intricate details, reminiscent of Greek ruins, enhances the ethereal, otherworldly atmosphere. Silver-gray buildings seem to melt into the mist, adding to the magical effects that might include glowing crystals or misty fumes. The juxtaposition of the historic and the mythical elements in this depiction is further accentuated by a silver subway car, contributing to an ambiance that aligns seamlessly with the MidJourney SREF index, inviting viewers into a dreamy and unreal dimension.