South Broad Street in downtown Philadelphia looks a bit blue at times. But stick around for a few minutes and its complexion changes.
"Five blocks of Broad Street have recently been equipped with probably the most high-tech lighting program of any city in America.
Nine buildings - on a stretch of South Broad that, because of its theaters, concert halls, art school, and other cultural venues, has been dubbed the "Avenue of the Arts" - now feature choreographed illumination from dusk to midnight (and later on weekends). A synchronized system using LED (light-emitting diode) fixtures causes the buildings' facades to become brighter or darker and to change color."
Thanks to Renee Brutvan
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