Which cities have the highest concentration of top-ranked universities?

The global economy is increasingly powered by innovation and knowledge, and great universities are a key source of those, functioning as catalysts of the knowledge economy. Leading-edge universities form the axis of tech hubs like the Bay Area (Stanford, UC Berkeley, and the University of California at San Francisco), the Cambridge-Boston region (MIT and Harvard), and a regenerating Pittsburgh (Carnegie Mellon and the University of Pittsburgh).

Read the full article at The Atlantic’s CityLab.