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Associated Press
Shown is the Cira Centre, right, on Thursday, April 4, 2013, in Philadelphia.  The classic Atari video game will come to life on the facade of the 29-story skyscraper. Hundreds of built-in LED lights at the Cira Centre will replicate the familiar paddles and ball. The effort is the brainchild of Frank Lee, a Drexel University game-design professor. Pong will be played April 19 and 24, to bookend an event called Philly Tech Week. (AP Photo/Matt Rourke)

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