In the history of iconic office buildings, New York City’s Empire State Building stands tall. Constructed in 1930, the 1,454-foot behemoth continues to defy gravity and tourist expectations – thanks in part to ongoing preservation and restoration investments to keep it running like never before. The latest facelift (unveiled last night with help from Grammy-award winning singer Alicia Keys) comes in the form of a cutting-edge LED lighting system, provided by Philips Color Kinetics (PCK....