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
Olympic flame opening ceremony of the Olympic Games at the site of the ancient Olympics in Olympia, Greece. Eleven women, representing the Vestal Virgins, perform a celebration at the Temple of Hera in which the first torch of the Olympic Torch Relay is kindled by the light of the Sun, its rays concentrated by a parabolic mirror. After the ceremony at Olympia, the Olympic flame first travels around Greece, and is then transferred during a ceremony in the Panathenaic Stadium in Athens from the prior Olympic city to the current year's host city. The Olympic torch relay in the host country ends