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26:12
A trip through the Valley of Tehuacán to the ancient city of Oaxaca in southern Mexico.
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26:12
A staple of the villages in the Valle de Tehuacán and nearby Oaxaca is the cactus.
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26:12
The wild, frigid desert of southwestern Bolivia is full of natural treasures.
26:14
Visit the the historic village of Santiago de K, high in the foothills of the Andes.
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26:14
Our journey to the highest desert in the world begins in Potosi, in southwestern Bolivia.
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26:14
San Ignacio Lagoon is the home to the peninsula’s most famous visitors—the Gray Whales.
Celebrate 10 years of extraordinary and award-winning programs on public television
28:06
One universal thing about kids – they always want to know “why?” This inquisitiveness is t
