W41DI-D

The history and warrior culture of the United States Marine Corps, including its grueling training program.

Renowned Irish musicians perform live across Ireland's scenic landscapes.

Music and interviews from the past season.

A cruise along the Rhine River includes a stop at Freiburg, Germany; a workshop centers on restoration pieces for Strasbourg Cathedral in France; strolling through Petite France; Heidelberg Castle; Gutenberg Museum; Cologne Cathedral.

Japanese food available at Tokyo's iconic market, from seafood to produce.

A reunited Berlin entertains more visitors than ever before.

Observing the black-necked crane in the Phobjikha Valley; the annual Ngang Lhakhang "Swan Monastery" festival in Bumthang, Bhutan.

Art scandal of the forged masterpieces in King Charles' Dumfries House; a failed 2023 assassination attempt on Queen Elizabeth II at Windsor Castle; a 2021 theft of valuable items from Buckingham Palace.

Controversy around Russian spy Anthony Blunt's long stay at the Palace in the 1980s; tumultuous history of the Scottish Crown Jewels; Diana's ascent to fashion icon; Princess of Wales' first international speech.

Ozark Mountain charm blends with university energy in Fayetteville, Ark., a city rich in music, food and tradition.

Sailing under towering fjord cliffs; hiking glaciers; Hanseatic heritage.

Scientific discoveries in North Carolina are examined.

Glenarm Castle; crossing the Carrick-a-Rede Rope Bridge; Dunluce Castle; sampling ice cream at Morelli's in Portrush; driving a hovercraft; Artis restaurant in Derry.

Sampling cheese in Piedras Negras; nachos; a walk to the Friendship Bridge over the Rio Grande; Basque refried bean tostada with avocado and Cotija cheese; lamb with pasta.

Four cheese baked macaroni with asparagus and peas; cider vinegar spritz; spicy vinegar ribs and potatoes.

Porto's iconic sandwich culture, from bifanas and pregos to the francesinha; cheese sandwich souffle; clever kitchen tips for bread and bacon.

Exploring the Pacific Crest Trail, from the deserts of Southern California on the Mexico border all the way to the Canadian border in Washington, and a journey along the hazardous 800-mile backcountry route of the Hayduke Trail.

How pigeons overcome the challenges of city life and thrive alongside people in London and New York.

How the rise of sexual reproduction fuels diversity, pushing life to specialize and shaping everything from tiny single-celled organisms to towering ostriches.

Rising sea levels threaten tiny Tangier Island in the Chesapeake Bay off the coast of Virginia.

A biologist makes new discoveries about the behavior of burrowing owls as a young family of owls faces the challenges of growing up wild.

Residents and coyotes learn to coexist in the urban landscape.

The wild, colorful, surreal and fun art of the 20th century, from Spain to Hungary to Glasgow to Oslo; the work of Pablo Picasso.

Banoffee pie; how to use air as an ingredient; browned butter shortbread.

Skillet chicken and rice with peas and pancetta; a review of tart pans; sweet potato shepherd's pie.

The delicate ecosystem that sustains life in Coahuila; a traditional cabrito lunch; machacado con huevo; machaca egg scramble; rosas de strudel de manzana con hojaldre; apple strudel flower puffs.

Visiting an heirloom watermelon patch in Virginia; watermelon salad; watermelon rind pickles and slaw; watermelon and cucumber cooler cocktail; the most approachable way to cut up a watermelon.

Picking muscadine grapes at a local vineyard; homemade wine; pizza with mulled muscadines.

Buttermilk biscuits; browned butter gâteau magique; iced buttermilk sugar cookies; a history lesson on Christmas pudding.

Porto's iconic sandwich culture, from bifanas and pregos to the francesinha; cheese sandwich souffle; clever kitchen tips for bread and bacon.

How pigeons overcome the challenges of city life and thrive alongside people in London and New York.

How the rise of sexual reproduction fuels diversity, pushing life to specialize and shaping everything from tiny single-celled organisms to towering ostriches.

Rising sea levels threaten tiny Tangier Island in the Chesapeake Bay off the coast of Virginia.

A biologist makes new discoveries about the behavior of burrowing owls as a young family of owls faces the challenges of growing up wild.

Residents and coyotes learn to coexist in the urban landscape.

Scientific discoveries in North Carolina are examined.

Germany's port city of Hamburg, post-World War II; historic sites of Martin Luther and the Reformation, including Erfurt, Wittenberg and Wartburg Castle; Würzburg in Franconia.

Exploring the allure of Myrtle Beach, S.C.; the cultural survival of the Gullah-Geechee African American community; kayaking the Waccamaw River; Brookgreen Gardens; surf fishing.

Actors Valerie Bertinelli and Brendan Fraser explore their family histories.

Torino robot lamps circa 1970; a Lee Pho oil circa 1950.

Art scandal of the forged masterpieces in King Charles' Dumfries House; a failed 2023 assassination attempt on Queen Elizabeth II at Windsor Castle; a 2021 theft of valuable items from Buckingham Palace.

Controversy around Russian spy Anthony Blunt's long stay at the Palace in the 1980s; tumultuous history of the Scottish Crown Jewels; Diana's ascent to fashion icon; Princess of Wales' first international speech.

Contemporary Mexican cuisine at Acamaya; tortilla soup; shrimp ceviche tostadas; pork tamales.

Tracing the story of yaupon -- North America's only native source of caffeine -- which has become a bridge between ecology, culture and renewal.

Skordalia, a garlicky dip with potatoes and walnuts; beet salad with garlic; shrimp marinated with retsina; batter-fried cod for skordalia.

Helsinki, Finland's Neoclassical old town has a modern flair for design; two-hour boat ride to Tallinn, Estonia.

The cuisine of Lyon, France; Chamonix in France; riding the lift to Aiguille du Midi and to the border of Italy; hiking the Tour du Mont Blanc -- the trail that circles the mountain.

Celebrating Halloween in Ireland's Ancient East; the Puca Festival; Wexford Opera Festival; sampling markets, pubs and restaurants.

The secret to the world's most famous hot sauce; George Washington as a farmer; Ohio's Malabar Farm; saving historic American barns in Vermont.

Chronicling Les's first time surviving for the cameras in August 2001; with just two cameras, a few items and his wits, Les survives in the Canadian wild.

Oaxaca's traditional forest management practices set a global example for sustainability.

People, places and events from all over the state.

Cluny Museum; midnight ride in a classic car; stained-glass in Sainte-Chapelle; Père Lachaise Cemetery; Parisian cafés.

Hiking through the Cumbria Lake District; cricket; hiking Hadrian's Wall; Durham Cathedral.

The Pantanal in southwestern Brazil is home to a variety of wildlife, namely birds and caimans; cowboys roam America's oldest ranches, following herds of swamp cattle.

Joseph Rosendo traces his roots in Tampa, Fla., following his immigrant grandfather's life in the 1890s; exploring Ybor City; the Cuban Club; Gasparilla Pirate Festival.

From Alexander Hamilton's birthplace to vibrant village life, the Caribbean island of Nevis holds stories of resilience, beauty and belonging.

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.

Building the ultimate Italian cheeseboard; skilled sausage and peppers; St. Joseph's zeppole, fried dough filled with vanilla cream topped with Amarena cherries.

The delicate ecosystem that sustains life in Coahuila; a traditional cabrito lunch; machacado con huevo; machaca egg scramble; rosas de strudel de manzana con hojaldre; apple strudel flower puffs.

Touring Reykjavík's endearing sights; a side trip to the Blue Lagoon; the classic Golden Circle; Snaefellsnes Peninsula.

A cruise along the Rhine River includes a stop at Freiburg, Germany; a workshop centers on restoration pieces for Strasbourg Cathedral in France; strolling through Petite France; Heidelberg Castle; Gutenberg Museum; Cologne Cathedral.

Women battle against Nazis behind enemy lines; Josephine Baker uses her celebrity status to smuggle information to the Allies; a wireless operator in France supports a spy network; teenage girls in the Netherlands assassinate Nazi officers.

Women who took to the skies to combat Hitler's aerial threat, including a pilot who delivered more than 1,400 aircraft, a Soviet group called the Night Witches and a gunner girl battling Hitler's Luftwaffe.

Stories of female journalists, nurses and guerrilla fighters; Martha Gellhorn stows away on a hospital ship and ends up on Omaha beach; photographer Lee Miller.

Mission San Jose's Mariachi Mass; holiday events at the historic La Villita in the Arneson River Theater; the Tamalada, holiday tamale-making party; midnight serenade for Our Lady of Guadalupe in San Fernando Cathedral.

The vast, arid Basin and Range Province features stunning geology, wild horses and abandoned mines.

Concluding the acrylic painting of a horse-drawn carriage on a rolling countryside; an auction house and flea market where Amish shop and sell vegetables, fruits and baked goods.

Waves crash into a rock-lined shore.