From Spain to Romania to Columbia, Christmas displays light up the night. A solitary spruce tree, decorated with battery-powered holiday lights controlled by a timer, greets motorists traveling the Glenn Highway near Palmer, Alaska, on Sunday afternoon, December 5, 2010. Twin Peaks, located in the Chugach Mountains, is visible in the distance. The Rockefeller Center Christmas Tree is lit on November 30, 2010 in New York. Originally from Mahopac, New York,. the 12-ton, 74-foot Norway Spruce is adorned with 30,000 environmentally friendly LED lights on more than five miles of electrical wire, and topped with a Swarovski crystal star. A colourfully decorated house is iluminated with Christmas lights in the evening hours in the northern German city of Hamburg on December 15, 2010 in Hamburg, Germany.