Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)

Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)

Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)

Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)

Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)

Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)

Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)

Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)

Photo taken on June 8, 2019 shows a light show projected on the building of Art Nouveau Museum in Aveiro, Portugal. A light show displaying scenes of Braganza Dynasty was presented in Aveiro on Saturday night. (Xinhua/Wen Xinnian)