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People try to keep their balance in a tunnel with spiralling walls at the pre-opening of the newly built Museum of Illusions in the old town of Warsaw, Poland, on Nov. 24, 2018. (Xinhua/Jaap Arriens)
People visit newly built Museum of Illusions in Warsaw, Poland
Source: Xinhua| 2018-11-26 20:17:12|Editor: xuxin
