In the second part of the video, Galileo reveals five secrets about airplanes and answers a few questions you may have asked yourself whenever you have taken a flight.

In old-growth forests, trees can grow, live, age, and die naturally, and thereby contribute to the ecosystem rather than being harvested in the prime of their lives. That's why the WWF has nature reserves in Germany where the old-growth forests of tomorrow can develop.

You check in, board, find your seat, and off you go! Everyone's familiar with the routine. But why do the crew always greet you as you board the plane? And what's the purpose of that tiny hole in the windows?

Carl Benz was a brilliant inventor and visionary in the automotive industry. His patent for his "gas-powered vehicle" is widely regarded as the birth certificate of the automobile.

Part three of this mini-series features breathtaking winter scenes of the Alps and wildlife that includes foxes, chamois, marmots, and wolves.

Enjoy a magical journey through Switzerland's rugged wilderness. This is nature at its finest! In this clip you will learn some interesting facts about the glaciers, the wildlife, and the climate.

Switzerland is more than just a haven for nature and wildlife; it's also Europe's water reservoir. This visually captivating documentary showcases the aquatic ecosystems and diverse fauna of Valais.

The "Ode to Joy" is one of the most well-known pieces of music in the Western classical canon. But its path to becoming Europe's anthem was long and winding. Watch this video and embark on a journey through the history of European unity.

Animals in zoos enjoy all-inclusive full-board accommodation, but too much luxury can be a bad thing. To make sure the animals stay active, the keepers and vets need to come up with some creative solutions.

In the second part of this mini-series, Nico, another physiotherapist, talks about what makes this practice so special and why they get so many good reviews. Paula also wants to know how Nick came to choose this particular profession. It's an interesting story!

This video gives you some insight into the services offered by one of Karlsruhe's physiotherapy practices. We explore the facilities with Paula and Dirk and get to know the staff.

The allure of the Feldberg Lakes with their clear, fresh water was described many years ago by the writer Hans Fallada. In the last part of this series, you can see how professional conservationists and volunteers are helping to preserve these impressive waters.

The original dream of flying fascinates Wolfgang Labudde, owner of Vierwerk GmbH, a company that manufactures light aircraft. He draws his inspiration from the flying machines of Otto Lilienthal, the pioneer and first successful aviator in human history.

The condition of the aquatic habitat is checked at regular intervals by conservationists and some interesting discoveries have already been made. Meanwhile, the ospreys are gradually training their young to become independent.

The meadows around the Feldberg Lakes are home to an enormous variety of floral and fauna. While deer, foxes, and hares live on land, predatory and non-predatory fish can be found underwater, where the natural balance is being threatened by anglers.