Rockefeller Center Christmas tree lighting ceremony held in New York, U.S.

New York City Mayor Bill de Blasio (L F) and other guests prepare to press the launching button during the Rockefeller Center Christmas tree lighting ceremony in New York, the United States, Dec. 4, 2019. A ceremony was held on Wednesday night in Midtown Manhattan to light the 77-foot-tall Rockefeller Center Christmas tree, a traditional routine held annually to mark the beginning of another holiday season. (Xinhua/Wang Ying)