Vaunted champion of urban living standards Enrique Peñalosa (pictured) is running for president of Colombia. As mayor of Bogotá, Peñalosa introduced a number of changes that improved the city’s public transportation system and also made it more pedestrian- and bike-friendly. His three-year reign witnessed the the implementation of the TransMilenio bus rapid transit system which services 2 million Colombians daily. He also instituted of a number of measures strategically restricting auto-traffic within certain parts of the city. Since 2009 the Duke alum has been president of the Institute for Transport and Development Policy, an organization that promotes transportation solutions globally. Peñalosa will be representing Colombia’s Green Party in the 2014 elections, which take place May 25.