Built in the 15th century under the reign of the Inca emperor Pachacuti, this city was a testament to the empire's power and ...

The Capac Ñan integrated the empire, but also diversified it ... It had the five features of typical Inca road-building, he pointed out: “Walls of containment and retention.

"Land of the Four Quarters" or Tahuantinsuyu is the name the Inca gave to their empire. It stretched north to south some 2,500 miles along the high mountainous Andean range from Colombia to Chile ...

It's the sound that around five hundred years ago accompanied the building of an empire, the Empire of the Inca - bigger than Ottoman Turkey, bigger than Ming China, in fact, the largest in the world.

this NOVA/National Geographic special presents new evidence that is changing what we know about the final days of the once-mighty Inca Empire. This probing story of archeological discovery begins ...

It's the sound that around five hundred years ago accompanied the building of an empire, the Empire of the Inca - bigger than Ottoman Turkey, bigger than Ming China, in fact, the largest in the world.