W San Francisco unveiled Lumina, a vibrant and otherworldly light sculpture towering at 27 feet, inside the hotel’s three-story entrance at the corner of 3rd and Howard streets. A commanding, lustrous mass reminiscent of cosmic star clouds, bioluminescent jellyfish and the brain’s neural networks, the sculpture emanates an overarching sense of mystery as its translucent fiberglass and fiber optic strands draw W San Francisco guests to its vibrant core.