Have you ever wondered why the colors of the German flag are black, red, and gold? In explaining how this came to be, this video offers a brief summary of how Germany became one united country.

Was Sisi of Austria truly the romantic fairytale princess that everyone believed her to be? Join us as we delve behind the scenes with Katrin Unterreiner, co-founder of the Sisi Museum in Vienna's Hofburg Palace.

Could eating less help us look younger, and more importantly, could it help us live longer? A few studies seem to show that this could be the case, but there are no conclusive results yet.

Although it might help with fighting age-related diseases in the future, research into calorie restriction and aging is not so far along – or free of contradictions – that we should factor it into our dietary choices.

In this video, physicist and author Harald Lesch talks about how Germany could phase out coal and nuclear power completely and still meet all of its energy needs.

Germany is not a big enough country to devote all of its land to creating renewable energy – but there is another place with vast expanses of empty space and limitless sunshine.

In this video, Anna and Teresa play a game called "Teekesselchen" ("Teapot"), in which you have to guess a word that has more than one meaning. Such words are called homonyms.

In this presentation from TEDxMünchen, Milena Glimbovski speaks about the topic of recycling, and how she became involved in the fight against excessive packaging.

Milena Glimbovski speaks about the process of starting Original Unverpackt, a supermarket in Berlin's Kreuzberg neighborhood that sells food only in bulk or in recyclable containers.

Sandra Reichmann explains her background and her particular passion for exercise.

With help from a volunteer from the audience, Sandra begins to demonstrate how exercises can be particularly tailored to different age groups.

One of the most significant problems of old age is the risk of falling. However, there are exercises that can be done to strengthen the muscles that may help prevent it.

A spectacular tattoo exhibition took place in Frankfurt at the Roomers Hotel. Well-known tattoo artists were present.

At the “Aloha Tattoo” in Karlsruhe, you can have even your most outlandish tattoo dreams fulfilled in a South Pacific atmosphere.

Crime-scene cleaner Schotty shows up at the house of a distraught woman who’s allegedly been attacked by a “pig.” But is she talking about a piggish man — or an actual pig?