9 De Julio Avenue, Argentina
9 de Julio Avenue located in Buenos Aires, Argentina is the widest road on earth. Crossing this road as a pedestrian is much more exciting than being in a car. You can walk past gardened areas between lanes, and it takes a few traffic light rotations to cross the 18 lane road (9 lanes in one direction) and 110 meters wide.
Surprisingly this important road of 9 de Julio Avenue is only 1 km.