Does Paris look distinctively different from other cities, such as London or New York City, or do all big cities look alike?  The scientists at Carnegie Mellon University say each city has very unique features and, using Google images, have developed date mining software to capture these subtle differences.  Science Daily reported this ground-breaking research which you can read about here:  What Makes Paris Look Like Paris? Software Finds Stylistic Core

View of Paris, France from the Arc de Triomphe