The Hidden Secrets of Lake Titicaca

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.

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.

Through deeply personal interviews with her siblings and an examination of the photographs, letters, and belongings left behind, Mariska assembles a new portrait of her mother Jayne Mansfield, an extraordinary and complex woman.

In an intimate and joyful story of love in the face of loss, celebrated poets Andrea Gibson and Megan Falley find strength—and unexpected hilarity—in what might be their final year together.

This documentary follows a team of local archaeologists excavating never before explored passageways, shafts, and tombs, piecing together the secrets of Egypt’s most significant find in almost 50 years in Saqqara.

Over 35 years after Bob Lazar's revelations, this documentary exposes secrets of a facility the government still denies. Featuring Lazar's testimony, recreations, and new evidence, it reopens a case that continues to spark global curiosity

An unprecedented and intimate look at the life, work and enduring legacy of British actress Audrey Hepburn (1929-1993).

Director Michael Apted revisits the same group of British-born adults after a 7 year wait. The subjects are interviewed as to the changes that have occurred in their lives during the last seven years.

With a team of the world's foremost historic and marine experts as well as friend Bill Paxton, James Cameron embarks on an unscripted adventure back to the wreck of the Titanic where nearly 1,500 souls lost their lives almost a century ago.

This revealing documentary honors the legendary Sidney Poitier—iconic actor, filmmaker, and civil rights activist. Featuring interviews with Denzel Washington, Spike Lee, Halle Berry, and more.

This documentary delves into the mysteries surrounding the Neanderthals and what their fossil record tells us about their lives and disappearance.

A documentary about ten very different lives connected by having appeared onscreen wearing masks or helmets in Star Wars.