(From L to R) Vice Mayor of Beijing Zhang Jiandong, Minister of the General Administration of Sport of China and Chairman of the Chinese Olympic Committee Liu Peng, IOC head of Olympic bid city coordination Jacqueline Barrett, Beijing 2022 Bid Committee president and mayor of Beijing Wang Anshun and IOC Sports Director Christophe Dubi pose with the bid files at the International Olympic Committee headquarters in Lausanne, Switzerland on on Jan. 6, 2015. Beijing on Tuesday handed over its official bid to host the 2022 Winter Olympics to the International Olympic Committee (IOC). [Photo: Xinhua/Zhang Miao]