Access to this video is a benefit for members through PBS Passport.
Up Next
Back to Show
Watch Preview
NOVA
Nazca Desert Mystery
Season 49
Episode 17
One of the world’s greatest ancient enigmas, the Nazca lines are a dense network of criss-crossing lines, geometric shapes, and animal figures etched across 200 square miles of Peruvian desert. Who created them and why? Ever since they were rediscovered in the 1920s, scholars and enthusiasts have raised countless theories about their purpose.
Support Provided By
Unlock with PBS Passport
52:53
Can science help us understand why some people commit horrific acts of mass murder?
Unlock with PBS Passport
52:52
A team uncovers the advanced engineering behind an ancient Egyptian war machine.
Unlock with PBS Passport
53:10
Shared DNA reveals a deep connection with our long-vanished human cousins.
1:53:49
A two-hour special from the producers of "Making Stuff"
53:10
Is our universe unique, or could it be just one in an endless "multiverse"?
53:40
Take a wild ride into the quantum realm, where even the impossible seems possible.
53:40
It defines our lives, but what is time really? Have a look into its true nature.
53:40
Surprising clues indicate that space is very much something and not nothing.
1:43:15
We are on the verge of answering one of the greatest questions in history: Are we alone?
Unlock with PBS Passport
53:05
Big quakes are inevitable, but can we prevent their devastation?
Unlock with PBS Passport
52:52
Can markets be rational when humans aren't?
Unlock with PBS Passport
1:42:48
Seven doctors, 21 years... Saving lives is only part of the story.