How Medellín went from crime-ridden cocaine capital to one of the world’s most innovative cities:

The Medellín Cartel, headed by Pablo Escobar, perhaps the only drug lord to become a worldwide household name, transported billions of dollars worth of cocaine, which had surpassed coffee as Colombia’s leading export by 1982. Arriving on U.S. shores, the exploits of cocaine cowboys made Miami the murder capital of the world in the early ’80s, an ignominious title Medellín itself stole in 1991, when it topped out at 381 murders per 100,000 residents, 40 times what the United Nations considers “epidemic.” That rate, if translated to New York