Summer Olympic Games the 2020 Summer Olympics, when it will become the first city outside the Western world to have hosted the Summer Olympics more than once, having already hosted the Games in 1964. The other countries that have hosted the Summer Olympics are Belgium, Brazil, China, Canada, Finland, Italy, Mexico, Netherlands, South Korea, Spain, Soviet Union, and Sweden; each of these countries has hosted the Summer Games on just one occasion. Asia has hosted the Summer Olympics three times, in Tokyo, Japan (1964), Seoul, South Korea (1988), and Beijing, China (2008); Asia will host the Games for a fourth time in 2020
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