Video by Samuel Sotomayor Fifty years ago, a 28-year-old Colombian with a bushy beard, flares and vintage Raleigh bicycle led a revolution on the streets of Bogota. Architect Jaime Ortiz Marino ...

The program's global renown is a huge source of pride in Bogota, helping transform a city blighted by guerrilla and paramilitary violence in the 1980s and 1990s into a Latin American capital of cool.