Last night, the Empire State Building was lit up in green to celebrate
the end of the Muslim holy month of Ramadan. While this might leave some
neocons around town gibbering with rage, it's a fitting tribute to New
York's sizable Muslim population. And, according to Ed Husain of the
Council on Foreign Relations — who also tweeted a photo of the emerald
tower here — the light show will continue for another two nights.

Read more : http://nymag.com/daily/intel/2012/08/empire-state-building-glows-green-for-ramadan.html