Breathtaking imagery of a futuristic underground city, with massive subterranean

Breathtaking imagery of a futuristic underground city, with massive subterranean tunnels merging natural grandeur and cutting-edge technology. The tunnels are illuminated by bioluminescent fungi and radioluminescent fibers, casting an ethereal glow on ancient rock formations. Towering stalactites and stalagmites stand like sentinels in the dim light, while maglev trains silently glide through the corridors. The air is filled with the scent of dampness and minerals, accompanied by the faint ozone tang of high-energy plasma conduits. In the distance, holographic advertisements and neon signage blend with the soft glow of cultivated phosphorescent flora. Bustling markets offer a variety of exotic products and services, while techno-shamans perform rituals that fuse ancient mysteries with futuristic city.