Children play at the Tecnopolis, a science, technology, industry and art exhibition in Buenos Aires, capital of Argentina, on Aug. 21, 2016, the Children's Day of the country. (Xinhua/Osvaldo Fanton/TELAM)
Children play at the Tecnopolis, a science, technology, industry and art exhibition in Buenos Aires, capital of Argentina, on Aug. 21, 2016, the Children's Day of the country. (Xinhua/Osvaldo Fanton/TELAM)