(151211) -- CHICAGO, Dec. 11, 2015 (Xinhua) -- People board the Chicago Transit Authority's Holiday Train at Grand Station of subway blue line in Chicago, the United States, on Dec. 10, 2015. Like every year, the holiday train, which features Santa Claus on an open-air flatcar as the train pulls into each station, will operate as part of regularly scheduled rail service. With more than 20 years history, the holiday train will be joined for the first time by a Holiday Bus, a 60-foot vehicle featuring strings of lights and 3-D antlers affixed on top, Chicago Tribune reported. (Xinhua/He Xianfeng)