The Bay Lights is the world’s largest LED light sculpture, 1.8 miles wide and 500 feet high. Inspired by the Bay Bridge’s 75th Anniversary, its 25,000 white LED lights are individually programmed by artist Leo Villareal to create a never-repeating, dazzling display across the Bay Bridge West Span through 2015.

It opens tomorrow night.

Read more about it here.

Watch a live webcast of the lighting here tomorrow, 5 March 2013, 8:30pm.