Museum's Central Hall: Symmetrical Staircase and Vaulted Skylight

Design a museum great hall in the manner of Gae Aulenti inside a monumental domed palace, laying a strictly geometric new floor and inserting a symmetrical pair of straight stone stairs that respect the old axis while remaining unmistakably modern. Compose the vast dome and ornamented pendentives above, austere new stone stairs with slender steel rails below, a polished stone floor in a bold grid, no clutter or barriers, daylight falling from the dome lantern, one-point view on the axis, 24mm lens, interior photography, ultra photorealistic, 8K