Filmed by Emmy Award-winning cinematographer Al Giddings, this timeless program takes a stirring look at the largest, tallest, longest-living things on the planet: trees. Stunning location footage captures the variety and the grandeur of the Pacific Northwest, the Florida Everglades, the Shenandoah Valley, and the Great Sonoran Desert. Quotations from Sierra Club founder John Muir and others who revere nature are interwoven with information on topics ranging from the function of forest ecosystems, to the effects of deforestation, to the integration of parks into urban landscapes.

High up on the Tibetan plateau. Amongst unexplored and inaccessible valleys lies one of the last san...

Scientists have discovered and investigate the reason behind the behavior of sharks swimming around ...
This astounding documentary delves into the mysteries of the Tunguska event – one of the largest cos...

As the most dammed, dibbed, and diverted river in the world struggles to support thirty million peop...

Journey to a secret valley in Australia, where a nervous baby kangaroo named Mala faces hungry dingo...

People go and search for the legendary Bigfoot creature.

William Shatner sits down with scientists, innovators and celebrities to discuss how the optimism of...

In 1966, Heinz Sielmann sets off on his longest expedition. He spent 19 months traveling through the...

An astonishing journey revealing the awesome power of the natural world. Over the course of one sing...

Sea otters are once again in peril after being brought back from the brink of extinction. An unprece...

Grand Canyon is a 1958 American short documentary film directed by James Algar and produced by Walt ...

The complex engineering challenges that make re-entry into the earth's atmosphere so dangerous. Scie...

In a pathetic attempt to host his own children’s nature show, a failing filmmaker travels 3,000 mile...

Ewan McGregor narrates a captivating portrait of wild Shetland and traces the course of a breeding s...

The early retired Gert spends the last summer in his garden, a place that has become a real home for...

In this special documentary that inspired a two-season television series, scientists and other exper...

A poetic film about a young woman's life and dreams. A woman who had the courage to change her life ...

The largest predator on the planet, the sperm whale, is your host for an amazing exploration of the ...