 Throughout the campaign , the Rio de Janeiro bid committee introduced its plans to the General <unk> of all <unk> of National Olympic Committees ( <unk> ) , making the bid 's first official presentation on October 11 , 2008 , to the Pan American Sports Organization ( <unk> ) , in Acapulco , Mexico . On October 21 , the vision was presented to the Olympic Council of Asia ( <unk> ) in <unk> , Indonesia , followed by the European Olympic Committees ( <unk> ) on November 21 , in Istanbul , Turkey . On March 26 , 2009 , Rio officials made a praised presentation during the 2009 SportAccord Convention in Denver , United States . For the first time , a world map of the past Olympic host cities was displayed , subsequently becoming an icon of Rio 's campaign due to the void in South America . On March 31 , 2009 , the Rio de Janeiro bid committee made its plea to the Oceania National Olympic Committees ( <unk> ) in Queenstown , New Zealand ; and on July 7 , to the Association of National Olympic Committees of Africa ( <unk> ) in <unk> , Nigeria . The bid committee also attended many sporting events , such as the Australian and European Youth Olympic Festivals , the Commonwealth Youth Games , the Asian Youth Games and the Mediterranean Games , as well as the <unk> , Athletics , <unk> and <unk> World Championships . The three @-@ year campaign culminated with the beginning of the 13th Olympic Congress in Copenhagen , Denmark , which was officially opened in a ceremony held at the city 's Opera House , and after a lunch offered by <unk> II , Queen of Denmark , to the heads of state of the four Candidate cities at the <unk> Palace . 
