Pittsburgh Is Quietly Becoming America's Smartest Airport

In 1992, Pittsburgh International Airport was called "the airport of the future." Twelve years later, US Airways walked away and left it for dead. Everyone assumed Pittsburgh was finished. But sitting on 9,000 acres of land and one of the richest natural gas fields in America, the airport quietly reinvented itself. Today it runs on its own power plant, hosts the world's first 3D printing production campus, and just opened a $1.7 billion terminal — becoming the first US airport in history to win Airport of the Year twice. This is how a left-for-dead hub became America's most innovative airport.