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A staple of the villages in the Valle de Tehuacán and nearby Oaxaca is the cactus.
A trip through the Valley of Tehuacán to the ancient city of Oaxaca in southern Mexico.
A journey to Baja, California and then continuing south to further explore.
Catch a rare glimpse into the life, culture, and traditions of the native Mayo Indians.
Evidence suggests that the ancestral Pueblo Indians accurately marked astronomical events.
In Baja, the musing and memories of the ancient people adorn the walls in a dry cave.
The intrepid travelers begin a thorough investigation into the weird, wild plants of Baja.
Visit the the historic village of Santiago de K, high in the foothills of the Andes.
The wild, frigid desert of southwestern Bolivia is full of natural treasures.
Extras
Inside Georgia's push to rebuild trust in elections after Trump's false claims
Poll gauges voter enthusiasm for both parties a week before election
Democrats put economy and affordability at center of final campaign push
Projections show no clear winner in Israel's election
School principal documents Indonesia's worst wildfires in a decade
Why Trump's coalition of evangelical voters could be fraying
Artemizia Foundation, A New Path Forward, Recycling is no mystery in Bisbee, Thuy’s Noodle Shop.
Appraisal: Victorian Slide Chain & Diamond Bracelet
Aaron Glantz and Sophie Hills discuss AI companies' efforts to influence the midterms.
October 27, 2026 - PBS News Hour full episode
The arduous journey of water through the Sonoran Desert Valley.
Explore the hottest and driest region of North America, just south of the border.
Some amazing research projects which help the wild inhabitants of the desert.
Spring in the Sonoran Desert is a time of beauty and abundant life.
Take a look at some fascinating ways people can learn about the desert.
Explore riparian areas surrounding the Colorado River.
Take a closer look a the animals and plants in and along the Sea of Cortez.
Explore some real desert islands where birds, plants and animals struggle to survive.
How many mysteries are being solved and many benefits realized by the study of the desert.