Create a fast-paced first-person perspective flight through a futuristic, abandoned American city. The city is overtaken by nature, with plants and lush green vegetation covering skyscrapers, office buildings, and streets. A reflective, mirror-like sphere hovers at the center of the frame, maintaining a constant distance from the camera. The sphere perfectly reflects the environment, showcasing distorted images of the overgrown city, sunlight, and dynamic camera movements. The journey transitions seamlessly between urban areas and scenes of the ocean, where waves crash against partially submerged buildings, and abandoned structures rise dramatically from the water, covered in algae and seaweed. The camera dives close to the ocean's surface, revealing shimmering reflections and marine life reclaiming the ruins, before soaring back into the cityscape. Abandoned vehicles covered in moss and rust are scattered along empty roads, while sunlight pours through gaps between buildings, illuminating the overgrowth and creating a tranquil yet eerie atmosphere. Smooth, dynamic camera movements enhance the fast-paced, immersive experience, with a hint of horror as nature and the ocean reclaim the city after the departure of its inhabitants.