An enormous brutalist bunker complex hidden within a snowy mountain range, its concrete exterior blending into the icy cliffs. The structure's angular design is ominous, with jagged overhangs and narrow corridors visible under the dim glow of a crescent moon. Snow covers the pathways leading to heavy steel doors, and strange, glowing symbols are etched into the concrete walls. The surrounding forest is dark and silent, the skeletal branches of frost-covered trees adding to the sinister atmosphere. The setting feels like a forgotten relic of a dystopian experiment, exuding fear and intrigue.