Summer Olympic Games demand for tickets to all levels of each event, there was controversy when seats set aside for sponsors and National Delegations went unused in the early days. A system of reallocation was put in place so the empty seats were filled throughout the Games. Rio de Janeiro, Brazil hosted the 2016 Summer Olympics, becoming the third city in the Southern Hemisphere to host the Olympic Games after Melbourne, Australia, in 1956 and Sydney, Australia, in 2000, and the first South American city to host the Olympics. The preparation for these Games was overshadowed by controversies, including the instability of Brazil's
Youth Olympic Games list was then shortened to two finalists, Innsbruck and Kuopio, in November 2008. On 12 December 2008, it was announced that Innsbruck beat Kuopio to host the games. Nanjing, China was selected by the IOC over Poznan, Poland to be the host-city of the 2014 Youth Olympics. The election was held on 10 February 2010, two days before the start of the 2010 Winter Olympics in Vancouver. Lillehammer, Norway hosted the 2016 Winter Youth Olympics. Youth Olympic Games The Youth Olympic Games (YOG) is an international multi-sport event organized by the International Olympic Committee. The games are held every four