National Geographic: 100 Years after 'Rediscovering Machu Picchu'

Rediscovering Machu Picchu

In the Wonderland of Peru

The Work Accomplished by the Peruvian Expedition of 1912, under the Auspices of Yale University and the National Geographic Society.

http://ngm.nationalgeographic.com/1913/04/machu-picchu/bingham-text

Inca Empire

Lofty Ambitions of the Inca

Rising from obscurity to the heights of power, a succession of Andean rulers subdued kingdoms, sculpted mountains, and forged a mighty empire.

http://ngm.nationalgeographic.com/2011/04/inca-empire/pringle-text