(181007) — BUENOS AIRES, Oct. 7, 2018 (Xinhua) — Athletes welcome the Olympic flag during the opening ceremony of the 3rd Summer Youth Olympic Games, in Buenos Aires, Argentina, Saturday, Oct. 6, 2018. (Xinhua/Martin Zabala)
(181007) — BUENOS AIRES, Oct. 7, 2018 (Xinhua) — Torch bearers walk to the main stage during the opening ceremony of the Buenos Aires 2018 Youth Olympic Games at Obelisco monument in Buenos Aires, Argentina, on Oct. 6, 2018. (Xinhua/Wang Lili)
(181007) — BUENOS AIRES, Oct. 7, 2018 (Xinhua) — IOC President Thomas Bach (2nd L) delivers a speech during the opening ceremony of the Buenos Aires 2018 Youth Olympic Games at Obelisco monument in Buenos Aires, Argentina, on Oct. 6, 2018. (Xinhua/Wang Lili)
(181007) — BUENOS AIRES, Oct. 7, 2018 (Xinhua) — Wang Yunzhang, flag bearer of Chinese delegation marches on the stage during the opening ceremony of the 3rd Summer Youth Olympic Games (YOG) in Buenos Aires, Argentina, on Oct. 6, 2018. (Xinhua/He Changshan)
(181007) — BUENOS AIRES, Oct. 7, 2018 (Xinhua) — Five actors dressed as futuristic labourers interact with the Olympic Rings during the opening ceremony of the Buenos Aires 2018 Youth Olympic Games at Obelisco monument in Buenos Aires, Argentina, on Oct. 6, 2018. (Xinhua/Wang Lili)
(181007) — BUENOS AIRES, Oct. 7, 2018 (Xinhua) — An artist of Fuerza Bruta performs on the Obelisco waving the Argentine flag during the opening ceremony of the Buenos Aires 2018 Youth Olympic Games at Obelisco monument in Buenos Aires, Argentina, on Oct. 6, 2018. (Xinhua/Martin Zabala)
(181007) — BUENOS AIRES, Oct. 7, 2018 (Xinhua) — IOC President Thomas Bach speaks during the opening ceremony of the 3rd Summer Youth Olympic Games (YOG) in Buenos Aires, Argentina, on Oct. 6, 2018. (Xinhua/Meng Yongmin)
(181007) — BUENOS AIRES, Oct. 7, 2018 (Xinhua) — IOC President Thomas Bach speaks during the opening ceremony of the 3rd Summer Youth Olympic Games (YOG) in Buenos Aires, Argentina, on Oct. 6, 2018. (Xinhua/Li Jundong)