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Exploring Roman art and architecture, from statues, mosaics and frescos to colossal arenas and giant monuments.

Wildlife cameraman Colin Stafford-Johnson explores Ireland's west coast and wildlife, including humpback whales, eagles, salmon and red deer stags.

Wildlife cameraman Colin Stafford-Johnson explores Ireland's west coast and wildlife, including humpback whales, eagles, salmon and red deer stags.

Robert & Gemma Bradley rock out at Giant's Causeway.

Rosie Carney sings at a Star Wars movie location in Donegal.

Discovering Ireland's modern pyramid built on a bog at Lough Boora in Roscommon; Ailbhe Reddy and Niamh Regan share new music at Malahide Castle in Fingal.

Ardgillan Castle and Demesne in Fingal, an estate with uninterrupted sea views; Stevie Appleby and Caoi De Barra share new music.

Irish dancing; Emily & Thomas Colangelo; Dublin Castle; Shackleton Gardens.

Skerries Windmill provides the backdrop for Rita Lynn and The Next New Low; Breanndán O Beaglaíoch and Glen Hansard.

New opportunities for migrants in Spain; a village offers criminals new hope; St. Peter's set to shine for anniversary.

A stunning opening strike has given way to diverging strategies in Iran, and no clear way out; former Senior Director of the U.S. National Security Council Thomas Wright.

All-female news analysis of issues and policy affecting the U.S.

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

A look back at interviews with policymakers and experts about America's long-simmering conflict with Iran.

Experts analyze prominent international affairs topics and America's role in a shifting world.

Warehouse in Portland, Ore. stores work of renowned artists to be lent to museums.

One man's quest to set a world record by paddling 130 miles down the Columbia River; how a firefighting crew saved Oregon's Breitenbush Hot Springs; a distinctive rock that's part of a tribal creation story for Willamette Falls has gone missing.

Television aristocracy Esther Rantzen challenges daughter and television presenter Rebecca Wilcox in and around Reading; Rebecca delights in diving into romance novels, and Esther hears the moving stories of British evacuees during WWII.

Touring three of London's palaces -- the Tower of London, Hampton Court and Kensington Palace; host Lucy Worsley.

Keira Knightley embarks on a journey of discovery to explore her grandparents' wartime stories.

Award-winning musician Emeli Sandé explores her grandparents' war stories which span World War II, the Mau Mau insurgency in Kenya and the fight for independence in Zambia.

Modern rocker Alanis Morissette presents a career-spanning set that includes "Hand in My Pocket," "Ironic," "Thank U" and "You Oughta Know.".

Television aristocracy Esther Rantzen challenges daughter and television presenter Rebecca Wilcox in and around Reading; Rebecca delights in diving into romance novels, and Esther hears the moving stories of British evacuees during WWII.

A behind the scenes look at "The American Revolution" with Ken Burns, Sarah Botstein and David Schmidt to learn about the production, which took nearly a decade to complete.

Visual interpretations of classical music set to images of nature, fantasy, historical locations, architecture and art; host Barry Bostwick.

In the fall of 1963, the Beatles were practically unknown in America, but that changed when they appeared on "The Ed Sullivan Show" in February 1964.

When a cough doesn't go away; lungs; how new biologic medications may help asthmatics; pulmonary embolism warning signs; singing as therapy.

Twenty-four hours a day, the latest national and international stories as they break.

Exercises that tone the entire body.

When the ball pit starts to overflow, Odd Squad must stop headquarters from being destroyed; two of Ms. O's assistants accidentally find themselves on a mission.

Lily and her family discover a surprise and also embark on a weather hunting expedition.

Liana accidentally submits art that Stu made and feels guilty taking the credit for his work; Lyla and Luke perform an "Anansi" folktale puppet show.

Lotta competes in the Fuzzytown Music Maker Championship, but the noise on stage becomes too much for her and she leaves; Carl forgets his bottle cap collection at his dad's house.

Daniel thinks about what Grandpere needs to be comfortable when he sleeps over at Daniel's house; Daniel, Chrissie and Prince Wednesday have a tea party.

Rosie and Javi both want to be in charge of the sandbox, so the kids hold an election to choose a president; Rosie and friends try to save the dino parade.

Abby sees Nina and Charlie tap dancing and tries to keep up, but she doesn't know how to do the moves and follow the rhythm.

The Wombats use a 3D printer to save Cake Day when Mr. E's cake table collapses; the Wombats create a pretend vacation to cheer up Buckley.

Duck enjoys "me time" at the beach; the pals like different things at Donkey's sleepover.

Phoebe and Jay accidentally get paint on the mail and have to decode addresses; Phoebe and Jay find their parents' box of memories.

Leaders try to bridge the divide over solving climate change.

Harvesting and charring nopales over an open flame; celebrating the traditions of Milpa Alta's community over a meal of mole and nopales.

Honey-glazed pork shoulder; exploring the world of sheep milk cheese; the Welsh tradition of celebrating the leek; creamy potatoes and leeks.

Visiting a family-owned tropical nursery in Deland, Fla., to learn about orchid care; painting several orchids using acrylics.

Detailing and highlighting the grasses and other areas; underpainting the rocks along the banks; painting the reflections of the grasses and rocks along the shoreline.

Olive's sneeze startles the kids when they are playing in the forest, prompting Elinor to learn about what causes sneezes in the first place; Ari wants to wear his lucky shirt for the big soccer game, but it is much too small for him.

Chris sets up an elaborate treasure hunt centering on a rare group of insectivores.

Molly, Tooey and Trini make pumpkin boats after Trini's giant pumpkin crashes on the ground; Molly and Tooey find a stowaway baby fox in their sled bag.

Theodore Roosevelt helps Brad overcome his dislike of creepy crawly things, showing him that nature needs space to live and grow; Eleanor Roosevelt teaches Xavier that any job can be amazing as long as you help others.

Easy ways to layout, cut and mark fabric; sewing darts; gathering four different ways; adding elastic.

Clever methods for creating patchwork with silk, leather, denim and other bulky fabrics; constructing a laptop sleeve with bound edges and a button closure.

South Korea's Jeju Fire Festival celebrates new life.

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

Re-ducting the house to make the system more efficient; demolishing the third-floor ceiling for the new insulation; installing a double-hung window in the dining room.

Twenty-four hours a day, the latest national and international stories as they break.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Contributions from women athletes, artists, activists and more.

In 1914, a young woman named Fern Hobbs set out to shut down a lawless town - on orders from Oregon's Governor.

Portland, Ore.'s first policewoman Lola Baldwin.

Fred Rogers postcards circa 1968; a 1966 Milton Glaser-signed Bob Dylan poster; a Tiffany Studios special order tulip lamp circa 1915.

A look at the life and career of actress Marlee Matlin as she shares her story in American Sign Language.

Touring three of London's palaces -- the Tower of London, Hampton Court and Kensington Palace; host Lucy Worsley.

Keira Knightley embarks on a journey of discovery to explore her grandparents' wartime stories.

Award-winning musician Emeli Sandé explores her grandparents' war stories which span World War II, the Mau Mau insurgency in Kenya and the fight for independence in Zambia.

Modern rocker Alanis Morissette presents a career-spanning set that includes "Hand in My Pocket," "Ironic," "Thank U" and "You Oughta Know.".

Interviews and investigative reporting on the people and movements driving positive systemic change.

Twenty-four hours a day, the latest national and international stories as they break.

Facial exercises increase sensory awareness in the mouth.

Olive and Otto must stop a villain who has turned townspeople and Odd Squad agents invisible; "Mustache Confidential" - When Agent Obfusco's mustache is stolen, it's up to Olive and Otto to get it back.

The Hunters find a stowaway in their picnic basket, a little furry dog.

Lyla asks customers for their leftover pumpkins, but then gets way too many; Lyla and Luke put their sisters, Liana and Louisa, through a babysitting test.

Nico is tired of being mistaken for her twin sister; Carl is upset when Nico breaks the Lint Dinosaur Monday rules and makes a Lint Monster instead.

Daniel tries to repair a broken trolley on his own; Daniel and Miss Elaina figure out how to fix a broken toy.

Rosie searches for an item to sell at the Neighborhood Market Day, but she struggles to find something just right; Rosie and her friend Javi decide to open a slime store.

Big Bird and a cast of characters including the likes of Bert and Ernie, teach children numbers, colors and the alphabet.

Super babysits Herbert while the Wombats help organize his surprise birthday party; Sammy's mom, Yolanda, organizes a fun photo scavenger hunt.

Donkey and Panda discover a golden rainbow after a storm; Donkey vows to help fix Grampy's walking stick after it breaks.

Phoebe and Jay learn how to sort items; Phoebe and Jay learn how to make food labels, so everyone can participate in the potluck.

An expert highlights super fall plants and explains why these plants perform so beautifully during that time of year.

Chef Corso cooks up delicious gourmet backpacking meals while hiking the trails of San Francisco.

Flo Braker prepares petits fours, ladyfingers, madeleines and miniature Florentine squares.

Creating the appearance of bunches of flowers as they appear outdoors.

How to "see" outdoors when stuck inside; putting items together to make a still life.

The kids try to get animals to the Flower Garden for its grand opening; the kids try to find out how their snow sculptures got ruined.

Chris challenges Paisley Paver to a race to the top of Goat Mountain, and the winner will decide the future of the mountain ecosystem.

Molly panics about going to the dentist; Molly and Tooey stumble upon a mystery visitor in Qyah.

Jerry Siegel and Joe Shuster encourage Brad to believe in the power of his imagination; Edmonia Lewis inspires Xavier to create a piece of art for his mom that represents their family.

Diana Broussard offers insight into accessories, their history and how to make and wear them.

Completing the feathered star.

Rome's Colosseum and Pantheon; bike riding along the Appian Way; Roman engineering.

Sustainable cacao chocolate in Costa Rica; Berlin's curry wurst; North Carolina's tomato pie; Melbourne's classic pasta and espresso; New Orleans' coffee blends; Rothenburg's powdered "snowball" pastry; Michigan's cherry ice wine.

Common types of caulks and sealants; installing a garbage disposal with an air switch controller; building a children's dress-up closet.

Twenty-four hours a day, the latest national and international stories as they break.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Singers Ciara and Alanis Morissette examine their family histories.

The rise of politician and activist Bella Abzug and her commitment to women's rights and progressive causes.