Jim Campbell, Scattered Light
Madison Square Park, NYC.

I've read a couple of descriptions of this installation now and I'm still not exactly sure how it works. But the piece (which involves curtains of light bulbs and high-contrast video footage of commuters dashing through Grand Central Terminal) creates the 3-D effect of shadowy figures moving among twinkling lights. The work is one of three site-specific installations by Campbell on view now in the park, each of which uses light to refract and interact with the surrounding city and its inhabitants. It sounds lovely. The installations, commissioned by the Madison Square Park Conservancy, are on view through February 28, 2011. More info here.