Lenny Williams

An investigation into the mysterious people who built Machu Picchu, the 15th-century Inca citadel located in southern Peru.

This film follows the life of the legendary tigress Machli from her prime till her death - her rise to power, her heartbreaking descent and the extraordinary legacy she left behind.

This documentary traces the history of U.S. relations with Latin America and draws strong links to America's current immigration crisis. Decaying economies in much of Latin America are viewed as the result of ill-conceived U.S. policies.

This is the true account of one of the most surprising and remarkable love stories in the history of New York. It begins in 1993, when a young man from Belgium looking to change his life has an unexpected encounter in Central Park. He meets a hawk. Not just any hawk, but a wild Redtail, a fierce predator that has not lived in the City for almost a hundred years. Compelled to follow this extraordinary creature, he buys a video camera and sets out to track the hawk.

In this eye-opening documentary about the inner workings of the White House, the most famous residence in America opens its doors for a behind-the-scenes tour and a meet-and-greet with the staff who keep it running in tip-top shape. Highlights include bird's-eye musings from White House workers who've seen it all and an interview with former President George H.W. Bush, who shares his memories about living in Washington, D.C.

We go behind the scenes and into the minds of artists as they capture, commemorate, and, at times, condemn our presidents.

It is one of Egypt's enduring mysteries. What happened to Nefertiti and her husband, Akhenaten - the radical king, and likely father of King Tut? In a dark and mysterious tomb located in the Valley of the Kings, there is a small chamber with two mummies without sarcophagi or wrappings. At times, both have been identified as Queen Nefertiti by scholars, filmmakers and historians. But the evidence has been circumstantial at best.

The majestic Alaskan brown bear is the largest predator in southeastern Alaska, but everywhere, its ancient haunts are under siege. As the modern world closes in, the great bear’s world is shrinking and encounters between humans and bears are on the rise. Join researcher LaVern Beier as he uses cutting edge technology to protect this extraordinary species. To observe them on their turf, without risking life and limb, LaVern attempts to deploy National Geographic’s CRITTERCAM. Until now, CRITTERCAM has been used almost exclusively on marine animals. Vern and his colleagues are on the cusp of a revolution in terrestrial field science…the opportunity to vicariously walk with bears into the deepest corners of their habitats, where even great hunters barely dare venture.

NATURE presents Christmas in Yellowstone, a breathtaking look at wintertime deep within America’s first national park. NATURE follows in the snowy footprints of Yellowstone’s red foxes, spies on the predatory warfare of wolves and elk, and climbs into the den of a grizzly bear that gives birth to two cubs while deep in hibernation. In addition to mesmerizing footage of landscapes and wildlife, trail alongside author and photographer Tom Murphy, who has been coming to Yellowstone for the past 26 winters, camping and photographing amid the silence and solitude of the park. And go behind the scenes with filmmaker Shane Moore to find out how he kept up with Murphy during an at times harrowing trek, reminiscent of the legendary John Colter’s first journey into the park nearly two hundred years ago.