New York City is one of the great harbingers of the magical Christmas spirit. From the moment the Rockefeller Christmas tree is set ablaze the city swirls with a dreamy energy whisked by brisk winter winds whipping down long deep canyons of steel and stone. It spins bodies on ice skates like tops. It dances with sparkling flakes of snow, which add the final touches to remarkably unreal window displays. It infects the soul and knows no immunity.