Unable to figure out whom Yara would've gone to visit in Switzerland, the group decides the best thing to do is to wait for her return.

We see how Yara got a phone call two weeks ago that led to her unexpectedly flying to Switzerland.

So where is Yara? Lisa's father asks Nico and Yara's friends a series of questions. Then they find some evidence that Yara might be in Switzerland. But why?

Various residents of Hausach compete with aircraft they have constructed themselves. Who will win?

The Hochstetten football club sings the German folk song "Wir lagen vor Madagaskar" about a doomed group of sailors.

Nico gives us some information about his background, but is interrupted when Lisa brings some good news.

Eva tells us about the tradition of Advent calendars and shows us one that she has made herself.

Piggeldy is curious about birdsong, and Frederick has a few questions he wants to answer for himself as well.

Piggeldy and Frederick go hiking, which doesn't appeal to Piggeldy at all until Frederick starts a sing-a-long.

The bicycle turned 200 years old on June 12, 2017. Of course, it hasn't always looked like it does today. This video shows the development over the last two centuries and introduces the inventors who were behind it.

Cettina and Sabine discuss various Easter traditions in Germany.

What are the Easter bunny traditions in Germany? Find out in this video.

Skiing is very popular in German-speaking countries. With this video, you can learn basic skiing exercises and how to talk about equipment and technique in German.

It's Eva's laundry day, and she's ready to give us all of the necessary vocabulary for doing laundry in Germany.

Eva takes us through some of the chores she has to do when she cleans her apartment, and a few shortcuts that she's found along the way.