NOVA

Ghosts of Machu Picchu

Season 37 Episode 4 | 52m 52s | Video has closed captioning.

Why did the Incas abandon their city in the clouds?

Aired: 02/01/10

Expired: 01/31/17

Rating: TV-PG

Problems Playing Video? | Closed Captioning

Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Original funding provided by Exxon Mobil, Pacific Life, the David H. Koch Fund …

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From the PBS science series NOVA, a biweekly podcast digging into the science behind the headlines. Alok Patel takes you behind the scenes with the people—scientists, engineers, technologists, mathematicians and more—working to understand our world.

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