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A LEGO quidditch game, a magical game described in J. K. Rowling's Harry Potter, is displayed at a LEGO exhibition in Warsaw, capital of Poland, on Feb. 4, 2018. A major LEGO exhibition, made up entirely from Lego with 10 million pieces and containing notable creations, is held at Warsaw National Stadium from Jan. 29 to March 25. (Xinhua/Chen Xu)
