the Inca mastered numerous building techniques, particularly stone masonry, to construct and manage a thriving empire that ...

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.

"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 ...