The Bay Bridge is being transformed into the world’s largest light sculpture by Leo Villareal:

The LED artist and his team finished installing lights along the suspension cables spanning a 1.8-mile section of the Bay Bridge, which connects San Francisco and the East Bay, almost a month ago. (The lights are only on the west-facing side and won’t distract drivers.) Right now, he’s tweaking the software algorithms that dictate the movement patterns of the lights, which will be on display for the next two years. He has until March 5, when the installation, The Bay Lights, officially opens.