Children play at Pavilion of Knowledge - Ciencia Viva Centre in Lisbon
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Children play at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
Children play at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
Children play at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
Children play at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
Visitors attend a lecture at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
Children play at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
Visitors watch a demonstration of a science experiment at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
A child plays at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
Children play at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)
Children play at the Pavilion of Knowledge - Ciencia Viva Centre, a scientific and technological space, in Lisbon, Portugal on June 1, 2020, the International Children's Day. (Photo by Pedro Fiuza/Xinhua)