Elegant Spiral Staircase in a Parisian Historic Interior

Photorealistic rendering of an elegant spiral staircase in a historic Parisian building. Creamy white marble steps with a gilded, ornate wrought-iron railing featuring Rococo scrollwork. The staircase winds gracefully to an upper mezzanine, reflecting in polished marble floors. Surrounding interiors in Beaux-Arts / Haussmannian style: tall arched windows with soft daylight, decorative moldings, gilded accents, and a crystal chandelier overhead. Warm, natural light creates gentle shadows and a timeless, opulent atmosphere. Camera angle from the lower landing looking up, with a shallow depth of field to emphasize the railing's detail and marble textures. 4K, photorealistic, fine-detail.