(IMAGE) CNRS Caption Comparison of the complexity (and entropy) of two major cities, Prague and Chicago. The circles on the right show the number of branches with given angles: almost all angles are represented in Prague, while the Chicago crossroads are almost all at right angles. Credit Coutrot et al./Nature Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.