text: In Bogota, Colombia millians of people hike, bike, skate or took buses to work durin a car-free day. It was the third year that cars have been banned with only buses and taxis permitted for the Day Wihout Cars in the city. The turnout was large, despite the occasional rain they ecieved, that didnt stop the colombians for doing what they did.  "It's a good opportunity to take away stress and lower air pollution" said Carlos Arturo Plaza. Two other Colobian cities, Cali and Valledupar, joined the Day Without Cars event. The citites are generation a revolutionary change in the world.