RIO DE JANEIRO, June 27, 2016 (Xinhua) -- Rio de Janeiro Mayor Eduardo Paes (3rd L) gives the "key" of the Velodrome to Carlos Arthur Nuzman (3rd R), president of the Organizing Committee for the Rio 2016 Olympic and Paralympic Games, during the delivery ceremony at the Velodrome inside the Rio 2016 Olympic Park in Rio de Janeiro, Brazil, June 26, 2016. The last venue of the Rio 2016 Olympic Park was officially delivered to the Organizing Committee of the Rio 2016 Olympic and Paralympic Games on Sunday. (Xinhua/Li Ming)