The Mystery of Chaco Canyon

Scientists examine underground clues from over 250,000 years ago that raise questions about our early relatives — and what it truly means to be human.

A look at the origins, history and conspiracies behind the "Majestic 12", a clandestine group of military and corporate figureheads charged with reverse-engineering extraterrestrial technology.

National Geographic's riveting effort recounts all 12 crewed missions using only archival footage, photos and audio.

David Attenborough brings to life, in unprecedented detail, the last days of the dinosaurs. Palaeontologist Robert DePalma has made an incredible discovery in a prehistoric graveyard: fossilised creatures, astonishingly well preserved, that could help change our understanding of the last days of the dinosaurs. Evidence from his site records the day when an asteroid bigger than Mount Everest devastated our planet and caused the extinction of the dinosaurs. Based on brand new evidence, witness the catastrophic events of that day play out minute by minute.

The film follows adventurer Jeff Johnson as he retraces the epic 1968 journey of his heroes Yvon Chouinard and Doug Tompkins to Patagonia.

Werner Herzog gains exclusive access to film inside the Chauvet caves of Southern France, capturing the oldest known pictorial creations of humankind in their astonishing natural setting.

A look at the "Hell House" performed annually in October by the youth members of Trinity Church (Assemblies of God) in Cedar Hill, Texas (a Dallas suburb) — seen by over 10,000 visitors each year.

Once the world's most famous astrologer, Walter Mercado seeks to resurrect a forgotten legacy. Raised in the sugar cane fields of Puerto Rico, Walter grew up to become a gender non-conforming, cape-wearing psychic whose televised horoscopes reached 120 million viewers a day for decades before he mysteriously disappeared.

Explore the evolution of Buzz Lightyear from toy to human in the making of Pixar’s Lightyear. Dive into the origin and cultural impact of everyone’s favorite Space Ranger, the art of designing a new “human Buzz,” and the challenges faced by the Lightyear crew along the way.

Musician and performance artist Laurie Anderson reflects on the deaths of her husband Lou Reed, her mother and her beloved dog.

Using the book 'Fragments', which collects Marilyn Monroe's poems, notes and letters, and with participation from the Arthur Miller and Truman Capote estates who have contributed more material, each of the actresses will embody the legend at various stages in her life.

An astonishing journey revealing the awesome power of the natural world. Over the course of one single day, we track the sun from the highest mountains to the remotest islands to exotic jungles.