The feudal principalities of far northern Pakistan, home to walled villages, yak herders, glacial rivers, golden poplar forests, and snow leopards, held off—or played off—would-be conquerors ranging from Alexander the Great to imperial Great Britain. Host Carolyn Beeler speaks with National Geographic Explorer Paul Salopek, whose globe-spanning journey on foot brought him through this remote region on the cusp of change. The post Out of Eden Walk: Walking through unknown Pakistan appeared first on The World from PRX.