NOVA
Making North America: Human
How has the land shaped our lives, from the arrival of the first Americans to today?
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Alaskan Dinosaurs
Intrepid paleontologists discover that dinosaurs thrived in the Arctic’s cold and dark.
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Petra: Lost City of Stone Preview
How did early engineers carve tombs into rock cliffs and funnel water to this desert city?
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Lee and Liza's Family Tree Preview
A family turns to science in their struggle to rediscover a history obscured by slavery.
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Colosseum: Roman Death Trap Preview
1500 years ago, how did the Romans engineer bloody spectacles and reenact sea battles?