One of the largest wetlands on our planet is a puzzle of different habitats and home to thousands of species like alligators, the elusive Florida panther and the delicate Key deer.

Gates of the Arctic National Park In Alaska's far north encompasses vast, trackless wilderness.

Filmed over three years, this special offers an extraordinary look at America’s first national park — Yellowstone. A wilderness jewel of vast forests and yawning valleys, Yellowstone is home to large bison herds, wolf packs, and generations of grizzly bears.

Visit one of America’s newest national parks — the Saguaro Desert in Arizona, where more species reside than any other desert in North America.

Millions visit the Grand Canyon each year, but few see the hidden wonders between rim and river.

Take a colorful journey through the seasons of Great Smoky Mountains National Park to reveal captivating life and growth beyond the lookouts.