Summer Olympic Games Australia (1956, 2000) and Brazil (2016). Africa has yet to host a Summer Olympics. Stockholm, Sweden, has hosted events at two Summer Olympic Games, having been sole host of the 1912 Games, and hosting the equestrian events at the 1956 Summer Olympics (which they are credited as jointly hosting with Melbourne, Australia). Amsterdam, Netherlands, has also hosted events at two Summer Olympic Games, having been sole host of the 1928 Games and previously hosting two of the sailing races at the 1920 Summer Olympics. At the 2008 Summer Olympics, Hong Kong provided the venues for the equestrian events, which took
Youth Olympic Games other year with summer and winter versions, and the Australian Youth Olympic Festival, have proven successful. The Youth Games are modelled after these sporting events. The YOG are also a successor to the discontinued World Youth Games. The Summer Youth Olympic Games of Singapore in 2010 and Nanjing in 2014 each played host to 3600 athletes and lasted 13 days, whereas the Winter YOG of Innsbruck in 2012 had 1059 athletes and Lillehammer in 2016 had 1100 athletes and lasted 10 days. Even though this exceeded initial estimates, the YOG are still both smaller in size as well as shorter