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Let's visit Krakow, one of Poland's most popular travel destinations. Our guide today is Polish YouTuber Eva zu Beck. She'll be taking us to the historic Sukiennice Market, Wawel Castle and the Kazimierz neighborhood with its long jewish history. But she's not the only one excited to show us around. Her dog Vilk loves Krakow too! Here's what you need to know.

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

How indigenous irrigation techniques create oases in one of the world's driest deserts. What we can do when urban trees increasingly suffer from drought. Why the oceans are growing warmer and louder. Also: How do fish breathe?

The Indochina War was one of the bloodiest chapters in French colonial history. Beginning in 1946, the Vietnamese fought to gain their independence from France. Hundreds of thousands of people died in the fighting.

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

Researchers estimate some 50,000 plants could have medicinal properties. In Good Shape takes a look at some of the best-known ones. What do scientists have to say about the properties of mint, sage or ginger? And what remedies can you use at home?

In the USA, teenagers with behavioral problems often end up in re-education centers. These function like prisons, isolating the young people from the outside world. The harsh educational measures sometimes end in death.

As a child in Iran, Hossein was subjected to sexual harassment and rape. The filmmaker grew up in Qom, the religious center of Shia Islam. Together with his wife Elahe, he tries to process his trauma in the film.

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

In the USA, teenagers with behavioral problems often end up in re-education centers. These function like prisons, isolating the young people from the outside world. The harsh educational measures sometimes end in death.

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

How indigenous irrigation techniques create oases in one of the world's driest deserts. What we can do when urban trees increasingly suffer from drought. Why the oceans are growing warmer and louder. Also: How do fish breathe?

Housing is a recognized human right in Mexico and Canada. But it's also big business and a big source of conflicts in a lot of countries worldwide.

Researchers estimate some 50,000 plants could have medicinal properties. In Good Shape takes a look at some of the best-known ones. What do scientists have to say about the properties of mint, sage or ginger? And what remedies can you use at home?

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

Housing is a recognized human right in Mexico and Canada. But it's also big business and a big source of conflicts in a lot of countries worldwide.

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

In the USA, teenagers with behavioral problems often end up in re-education centers. These function like prisons, isolating the young people from the outside world. The harsh educational measures sometimes end in death.

The latest research shows we've long underestimated the intelligence of insects. Bumblebees, for example, succeed at behavioral tests also passed by intelligent crows. They use tools to reach nectar in an artificial flower.

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

The Indochina War was one of the bloodiest chapters in French colonial history. Beginning in 1946, the Vietnamese fought to gain their independence from France. Hundreds of thousands of people died in the fighting.

Housing is a recognized human right in Mexico and Canada. But it's also big business and a big source of conflicts in a lot of countries worldwide.

Akanksha lives two lives: studying to please her father, but secretly pursuing her true passion -- rap. In this male-dominated world, Akanksha, who goes by the name D.zire, must fight to be taken seriously as a rapper. Kunal, aka Kaam Bhaari, tests D.zire's skills and determination. Will she prevail and prove herself among her male counterparts?

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

As a child in Iran, Hossein was subjected to sexual harassment and rape. The filmmaker grew up in Qom, the religious center of Shia Islam. Together with his wife Elahe, he tries to process his trauma in the film.

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

How indigenous irrigation techniques create oases in one of the world's driest deserts. What we can do when urban trees increasingly suffer from drought. Why the oceans are growing warmer and louder. Also: How do fish breathe?

Housing is a recognized human right in Mexico and Canada. But it's also big business and a big source of conflicts in a lot of countries worldwide.

Researchers estimate some 50,000 plants could have medicinal properties. In Good Shape takes a look at some of the best-known ones. What do scientists have to say about the properties of mint, sage or ginger? And what remedies can you use at home?

Heidi Ulrich loves speed. On the water. On her surfboard. She holds the speed windsurfing world record, but still she wants more. She keeps trying to go that little bit faster. Who is this woman? What drives her? How dangerous is speed windsurfing? Sports Life follows Heidi on her next world record attempt.

Housing is a recognized human right in Mexico and Canada. But it's also big business and a big source of conflicts in a lot of countries worldwide.

How indigenous irrigation techniques create oases in one of the world's driest deserts. What we can do when urban trees increasingly suffer from drought. Why the oceans are growing warmer and louder. Also: How do fish breathe?

As a child in Iran, Hossein was subjected to sexual harassment and rape. The filmmaker grew up in Qom, the religious center of Shia Islam. Together with his wife Elahe, he tries to process his trauma in the film.

How indigenous irrigation techniques create oases in one of the world's driest deserts. What we can do when urban trees increasingly suffer from drought. Why the oceans are growing warmer and louder. Also: How do fish breathe?

As a child in Iran, Hossein was subjected to sexual harassment and rape. The filmmaker grew up in Qom, the religious center of Shia Islam. Together with his wife Elahe, he tries to process his trauma in the film.

As a child in Iran, Hossein was subjected to sexual harassment and rape. The filmmaker grew up in Qom, the religious center of Shia Islam. Together with his wife Elahe, he tries to process his trauma in the film.

Housing is a recognized human right in Mexico and Canada. But it's also big business and a big source of conflicts in a lot of countries worldwide.