10 Questions 2018 Youth Olympics – recap A summary of some of the highlights from the 2018 Youth Olympics in Buenos Aires. Where were the 2018 Youth Olympics held? Dakar, Senegal Buenos Aires, Argentina Medellín, Colombia Glasgow, UK How many people were at the opening ceremony? 100 000 150 000 175 000 215 000 How many countries participated in the 2018 Youth Olympics? 88 121 162 206 … and 7 more awesome questions! Check them out by clicking “Play”.