The Inca Road was built by engineers and laborers working with bronze and stone tools and llamas. At the height of the Inca Empire, it integrated nearly ten million people from a hundred nations.

A long arrow pointed uphill. The east road. Antisuyu was what the Inca called the northeastern section of the empire. It included part of the Amazon Basin, a land they considered hot, dangerous ...

The Silk Road, a vast web of interconnected trade paths ... These cities were part of the vast empire ruled by the Karakhanids, a powerful Turkic dynasty that controlled much of Central Asia.