In the last few years, the brightest minds of the government of Mexico City decided to give the metropolis a motto. They chose Capital en Movimiento (Capital in Motion), although never explained just what that was supposed to mean. This buzzing bright sign with the blazing slogan is located on one of the inner-city freeways in the north of town. The photo was taken during rush hour, at about six in the evening, when traffic is so dense that "motion" is per centimenter.