And if you see the extension of the Inca Empire, if you compare them in the map with the Aztecs, it’s like four of five times more than the other big empire in the Americas. You can measure the ...

The legend begins in the 16th century, when the great Inca Empire in western South America ... he had uncovered Valverde's guide and a related map, made by a man named Atanasio Guzman.

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 ...