Sigrid seeks to answer the question "What's a borough?" In doing so, she talks about how New York City got its start, and also about the surrounding counties that played an important role in its development. In this video, you'll see 18th- and 19th-century maps of the area.

Food is scarce during the harsh winter months, and the battle to survive is intense. The successful wolf pack hunts constantly to feed each hungry mouth, and the weary bison must dig through layers of snow if they are to feed at all.

Forged by the volcanic heat that still bubbles at the heart of this great American wilderness, the mighty Yellowstone was the first of America’s National Parks. Located mostly in Wyoming, it is a place where bison roam free and the gray wolf has returned, re-establishing the natural order of the ecosystem.

Sometimes even a pro cook arrives home tired and hungry, or is feeling lazy, and they just want to cook up something quick, simple, and delicious. Chef Mike G shows us how to do this without resorting to canned ingredients. In the first of a four-part series, learn to make a mouthwatering fifteen-minute pasta dish with a fresh tomato sauce.

With the winter drawing in, the animals prepare once more for that harshest of seasons within the breathtaking confines of the world’s greatest gorge, the Grand Canyon National Park.

Sigrid describes the first part of her trip from Long Island to New Jersey, taking a moment to tell us about the famous Verrazzano Narrows Bridge.

For her final lentil dish, Nisha prepares deliciously creamy and savory lentils that are flavored with herbs and mixed with tahini and balsamic vinegar.

A fearsome American badger is on the hunt, and the prairie dogs are not even safe in their burrows. The north rim of the canyon thunders with rutting bison, as the big males lock horns to establish superiority.

Julia will take you through the basic functions of Yabla, including video playback, captions, and games. Enjoy!

Nisha calls the experts for guidance before making her perfect dal tadka, a spicy Indian lentil stew. The “dal” refers to the lentils and “tadka” to the aromatic oil infusion that is the finishing touch for the dish.

Sigrid traveled back to the U.S. recently to visit her family. She talks about her trip and takes some "detours" to share what she learned about some of the places she visited. She also happened to go to Mexico, where she shot this introductory segment.

Pronghorns are extremely fast and can easily outrun a mountain lion! Even so, they must watch where they tread as the canyon floor is littered with holes... prairie dogs live here and may share their burrows with some unusual birds that nest underground.

What happens when an important river like the Mississippi starts drying up because of lack of rain? We find out in this segment.

Food blogger and expert chef Nisha Vora shows us how she cooks lentils in three fresh and tasty vegan dishes. First up is a marinated lentil salad with fresh herbs, which is sure to be delicious and light!

The rare California condor has been successfully re-introduced in the Grand Canyon, and scientists monitor their progress by tagging the individual birds to identify them. As scavengers, they feed on the carcasses of dead animals, but are actually very clean creatures.