Craft a vivid portrayal of a magnificent city constructed within a colossal cavern deep beneath the earth's surface. Envision the vast expanse of the underground chamber, its towering walls adorned with intricate carvings and majestic pillars stretching towards the cavern's ceiling high above. Picture the bustling streets and bustling marketplaces of the subterranean city, illuminated by the soft glow of bioluminescent fungi and shimmering crystals that line the cavern walls. Capture the grandeur of its architecture, with towering spires and elegant bridges spanning bottomless chasms, connecting the various districts of the city. Convey the sense of wonder and awe as visitors wander through the labyrinthine streets, marveling at the ingenuity and resilience of its inhabitants. Let the scene evoke a sense of mystery and adventure, inviting viewers to explore the hidden depths of this subterranean marvel and uncover the secrets that lie within its ancient stone walls., Amazing quality, masterpiece, best quality, hyper detailed, ultra detailed, UHD, dof, hyper-realism, majestic, awesome, inspiring.cinematic composition, cinematic lighting, volumetric lighting, Film grain, shallow depth of field, highly detailed.