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
Winter Olympic Games selected as the host city for the 2014 Winter Olympics over Salzburg, Austria, and Pyeongchang, South Korea. This was the first time that Russia had hosted a Winter Olympics. The Games took place from 7 to 23 February 2014. A record 2,800 athletes from 88 countries competed in 98 events. The Olympic Village and Olympic Stadium were located on the Black Sea coast. All of the mountain venues were 50 kilometres (31 miles) away in the alpine region known as Krasnaya Polyana. The Games were the most expensive so far, with a cost of £30 billion (USD 51 billion). On