Ghosts of Machu Picchu: Why did the Incas abandon their city in the clouds? Airs on PBS February 2, 2010
A Marvel of Inca Engineering

A Marvel of Inca Engineering
Perched high in the Andes, Machu Picchu required ingenious construction, as engineer Ken Wright explains.

Rise of the Inca

Rise of the Inca
How did the Inca Empire become as vast as the Roman in just over a century?

Inca Skull Surgery

Inca Skull Surgery
In this audio slide show, see evidence of a radical surgical procedure common among the Inca 500 years ago.

Outfitting for Battle

Outfitting for Battle
Inca and conquistador soldiers had very different gear—and that made all the difference.

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