1 of 6: The Bay Lights is the world's largest LED light sculpture made of 25,000 LED lights strung along the western span of the Bay Bridge. "It's incredibly inspiring; the beauty of the interaction of the bay and the water is inspiring to me," artist Leo Villareal said. Private donations paid for the $8 million illuminated artwork that will be on display from dusk until 2 a.m. for the next two years. (KGO Photo)

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