The Olympic dreams of London, Paris, Madrid, New York and Moscow rest in the hands of the 116-strong International Olympic Committee on Wednesday.
So who makes up this diverse bunch of royals, politicians, sports administrators and former Olympians?
Find out with our rundown on the members from the Middle East. Check out another region by clicking on the map above.
Three of the 116 will not vote at all, while another 14 cannot vote in the first round, for a variety of reasons.
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Key player: Alex Gilady
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Ahmad Al-Fahad Al-Sabah Kuwait
Age: 43 - member since 1992
Major in Kuwait army. Minister of information and Minister of oil.
Nawaf Faisal Fahd Abdulaziz Saudi Arabia
Age: 27 - member since 2002
President of Saudi Arabia's Olympic committee. Senior position at ministry of youth, sport and culture.
Alex Gilady Israel
Age: 62 - member since 1994
Former television sports commentator and now vice-president of NBC Sports.
Tamim bin Hamad Al-Thani Qatar
Age: 25 - member since 2002
Graduate of Royal Military Academy at Sandhurst and Qatar armed forces officer. President of Qatar Olympic Committee.
Toni Khoury Lebanon
Age: 69 - member since 1995
Owns engineering and contracting company. Chef de mission for Lebanon at several Olympics.
Samih Moudallal Syria
Age: 65 - member since 1998
General secretary of Syrian parliament. Former Syrian weightlifting champion.