W41DI-D

Researchers around the globe gather data on how forests work and try to figure out how these ecosystems can help tackle threats of climate change and species extinction.

Wallabies, koolamana lizards and crocodile hatchlings face the wild river's dangers.

The diverse humans and creatures inhabiting the Kimberley region of Western Australia.

Discover how animals have learned to survive in harsh conditions, from high snow-covered peaks to frigid and wild southern seas.

The tranquil isle of Iona; Staffa's puffin colony; Isle of Skye's Iron Age forts, thatched crofter huts and Trotternish Peninsula; sailing to Orkney; Scapa Flow.

A West Coast-East Coast adventure shows off the charms of California's Big Sur region; Key West, Fla.

Actors Kristen Bell and Dax Shepard learn about their family histories, which includes stories of soldiers, settlers and criminals.

An 1857 Queen's Cup Ascot race trophy; a 1956 Curta calculator type II; an art deco sapphire and platinum ring.

Thomas Boleyn, the patriarch of the Boleyns, is determined to elevate the family name; his ambitions for his three children will take them to the heart of the Tudor court.

Anne grows into a dazzling beauty, and the king becomes caught in the glare.

The rich history of Indigenous food in Minnesota; foraging with ethnobotanist Linda Black Elk; harvesting manoomin with Veronica Skinaway and Michaa Aubid; a modern meal of fried wild rice with chef Sean Sherman.

The chefs, local producers and entrepreneurs who lead the way in sourcing fresh, local ingredients in the city of New York.

Tzatziki, Greek yogurt dip; Greek meatballs; shrimp saganaki with ouzo and feta cheese.

The festivity of Barcelona; Montserrat; pilgrimage along the Costa Brava; Salvador Dalí's home and mausoleum/museum.

The Ring Road -- the 800-mile loop around Iceland on Highway 1; the geothermal hot zone of Lake Mývatn; the rugged Eastfjords; glacier lagoons of the Southeast; waterfalls and beaches of the South Coast; puffins at the Westman Islands.

A visit to Bangkok includes the Chatuchak Weekend Market, some of Thailand's richest temples, and the River Kwai.

A farmer builds housing for his workers right on the land; how to make a white bean dip appetizer; a farm that provides refugees a place to grow and sell their own vegetables; farmers grow wheat in a very dry climate.

Les simulates a break-down scenario in the Arizona desert.

The UNESCO site of Mont Saint-Michel; exploring the half-timbered houses of Rennes, the capital of Brittany; the history of the French Carousel.

People, places and events from all over the state.

Back-street fish markets; pizza; climbing Mount Vesuvius; the ruins of Pompeii.

The Amalfi Coast: Positano resort; Sorrento; ancient Greek temples at Paestum; the Blue Grotto.

Ancient Aztec capital city of Tenochtitlan; historic flower market in Mexico City; the floating gardens of Xochimilco.

How modern and ancient festivals open a window into a people's soul.

Exploring Mississippi's college towns, including Oxford, Starkville and Jackson, and their local flavors, history and unique energy.

Hosts Yu Hayami and Patrick Harlan, with the help of Japanese chefs Tatsuo Saito and Rika Yukimasa, introduce Americans to the techniques, ingredients and harmony of Japanese cuisine.

Sweet potato chickpea gnocchi with Gorgonzola; beet and carrot salad; turbot.

A visit to Cenote Xocempich; horchata; sikil pak; fresh herbs masa corn tortillas.

Rick Steves offers practical advice on how to have a fun and affordable trip to Europe. Sites include Germany, Italy, the Swiss Alps, Paris and London.

Soda fountain in Brooklyn, N.Y.; Brooklyn Navy Yard; sampling whiskey at New York's oldest distillery; open-air food market; Gowanus Canal; the brownstone neighborhood of Bedford-Stuyvesant.

Young historians, guides, and descendants tell the untold stories of the Wild West.

The U.S. provokes a war with Mexico, taking California and much of the Southwest.

The myths and realities of the American cowboy.

The towns, markets and tribal camps of the Konso, Hamer and Mursi people in the Lower Omo Valley of Ethiopia.

Pilgrims travel to the Mayan city of Tizimin for the annual Kings Day festival which combines pre-Columbian and modern themes.

The history of the Castillo de San Marcos in St. Augustine, Fla.; a large painting of the fort.

A quaint little mountain-top home offers a view of distant snow-covered mountains.