There are various things we need to do to keep the pool clean and the water circulating. Sigrid describes some of them. It's quite a lot of work, but she thinks that having a pool is still worth it.

In this video, Sigrid talks about the different types of two-dimensional shapes and some basic geometry.

We can use dots and circles to describe things figuratively. Sigrid gives us examples with expressions like "connect the dots" and "inner circle."

From David Bowie's 1972 concept album The Rise and Fall of Ziggy Stardust and the Spiders from Mars, "Ziggy Stardust" is a song about the rise and fall of a rock star of the same name. This character was often considered Bowie's alter-ego. In this dynamic 1973 performance, Bowie is backed by his band, which was also named The Spiders from Mars.

A square is a shape, of course, but there are plenty of ways we use squares to describe things figuratively. Let's look at some examples of when and how we do this.

Rea Garvey is a singer, songwriter, and guitarist from Ireland. He was formerly the frontman of the band Reamonn and has collaborated with musical artists from Nelly to Xavier Naidoo to Mary J Blige.

What expressions are related to the word "line"? We use "line" when talking about the laundry, behavior, or even time.

Originally released in 1973, The Dark Side of the Moon became Pink Floyd's first #1 album in the US, remaining on the chart for 741 weeks between 1973 and 1988. This is the official video for "Money," one of the most famous songs from the album.

Pierre talks about the tradition of afternoon tea, which is practically a ritual in England. Today, he's taking a relaxing break with Earl Grey tea and digestive biscuits.

Karate world champion, West End star, BRIT Award nominee... Anne-Marie is a woman of many talents. Here, she teams up with KSI and Digital Farm Animals for a song about a relationship that is going through a rough patch, and whether it can be saved.

This video clearly presents some fundamental differences between American English, British English, and Australian English in terms of spelling, pronunciation, and vocabulary.

It's rare to establish a new holiday, but this year it happened: Juneteenth is now officially observed in the United States. What is Juneteenth and what does is commemorate? Learn about it in this video.

This hit pop song from Dua Lipa is about falling in love and the fear of getting hurt. Maybe she should have stayed at home after all…

Freedom for the slaves should have come in 1863 with the Emancipation Proclamation, but it wasn't actually abolished until 1865.

This Yabla news broadcast features stories about two different kinds of animals, one enormous and one tiny. Sometimes we can predict how animals will behave, and sometimes not.