see more

A Brazilian flag is seen on a bike next to a sign reading "Change lane as overpassing. Thanks" during the 4th Annual World Bicycle Forum, which theme is "Cities for All, in Medelin, Antioquia department, Colombia on February 26, 2015. The event goes through March 1st and gathers over 5000 cyclists of around the world. AFP PHOTO / Raul ARBOLEDA (Photo credit should read RAUL ARBOLEDA/AFP/Getty Images)

A Brazilian flag is seen on a bike next to a sign reading "Change lane as overpassing. Thanks" during the 4th Annual World Bicycle Forum, which theme is "Cities for All, in Medelin, Antioquia department, Colombia on February  26, 2015. The event goes through March 1st and gathers over 5000 cyclists of around the world. AFP PHOTO / Raul ARBOLEDA        (Photo credit should read RAUL ARBOLEDA/AFP/Getty Images)