This is a short video showing some of London's best-known sights, such as Trafalgar Square, Tower Bridge, and the Tate Modern.

Here's a business meeting where not everyone has the same opinion. Even if you can't understand every word, try to grasp some of the expressions the speakers use to agree or disagree.

Some and any both refer to an unspecified quantity, but they are used in different situations. Sigrid explains how they work.

Bob Dignen introduces the topic of decision-making in international companies, and the various approaches to this.

From their film "A Star is Born," here is the music video for Lady Gaga and Bradley Cooper's song "Shallow," for which Gaga and her co-writers received an Oscar.

Sigrid explains the meaning of "prop" as both a noun and a verb. Either one can come in handy.

Retired interior designer Peg Harris explains a bit about what that profession is all about.

David Bowie gives a great live rendition of the Mott the Hoople classic "All the Young Dudes". He asks his fans to refrain from singing along, but they don't seem to follow his orders!

London's West End is the focal point for this video, and the narrator has some good tips on buying discounted movie and theater tickets.

The narrator explains how the breathtaking rock formations of Antelope Canyon came to be, and why mountains around the world can provide a metaphor for human existence.

Londoners interviewed at Borough Market describe the great variety of thriving cultures – with an emphasis on cuisine – in their city.

In this segment, the narrator explains where the name Bryce Canyon came from, and why the sand dunes in the US and the large deserts of the world might be related.

In American schools, it's common for kids to have to learn the Preamble to the United States Constitution by heart. This song, from Schoolhouse Rock, is meant to give these kids a hand, even though it is a slightly abridged version.

Peg Harris shows off her cozy New York City art studio and some of the tools she works with as a painter and printmaker.

Justin James is a Canadian singer-songwriter. “A Beautiful Life” is from his third album, which bears the same title.

Here are some words to help answer the question "Which one?" We distinguish between singular and plural as well as between something close to us and far away.

Prince narrates a one-night stand with a beautiful but promiscuous woman (the "Little Red Corvette" of the title). He uses several other automobile metaphors in the song.

This song was written and sung by Bob Dorough. It teaches about the multiplication of 5 through a game of hide and seek, in which the seeker counts by fives.

Lindsey Vonn describes her early days on the slopes, the encouragement she received from her father, and coming back from the many injuries she has endured on her way to becoming a champion skier. She also talks about her decision to compete against men in alpine skiing.

The song "Run" is from Irish band Snow Patrol's album "Final Straw." The video features frontman Gary Lightbody in a forest at nighttime.

Taylor Swift teams up with British singer Ed Sheeran and American rapper Future for this song "End Game," the video for which was shot in Miami, Tokyo, and London.

The Dropkick Murphys – an American Celtic band from Quincy, Massachusetts – level some heavy and hilarious criticism at Christmas and family members, but they are also having an awfully good time celebrating the holidays.

Why are some rock formations and animals found on more than one continent? The explanation dates back to the Ice Age.

Why do some of the national parks in the United States resemble the European Alps? Geologist Dr. Robert Darga answers this question.