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Tourists visit the marked Arctic Circle latitude line at the Santa Claus Village, located on the Arctic Circle in Rovaniemi, northern Finland, on Jan. 19, 2018. (Xinhua/Sergei Stepanov)
 
 
Tourists visit the marked Arctic Circle latitude line at the Santa Claus Village, located on the Arctic Circle in Rovaniemi, northern Finland, on Jan. 19, 2018. (Xinhua/Sergei Stepanov)