Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. Here we see many animals emerge from hibernation, and then catch a glimpse of what lies over one hundred meters below the surface.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. From the swiftly flowing streams to the cliffs high above, the area around the lakes hosts a number of different species.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. In this episode, we'll explore the mysterious "Lake of Blood" and some scandalous interspecies dating!

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. In this part, we explore the mysterious "cow tracks" found throughout the Alps in stone. These are, in fact, ancient fossils from the time when this mountain range was an ocean floor.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. Here we see the female perch defending her spawn from North American crayfish, and look at the role of glaciers in storing Alpine water.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. Here we see the effects of global warming, from the melting ice on the mountains to the caves of Slovenia.

Alpine Lakes, a nature documentary, leads us into the fascinating world of deep mountain lakes. As snow covers the mountains, mammals and fish alike fight for survival.

Alpine Lakes, a nature documentary, leads us into the fascinating world of deep mountain lakes. When winter comes and the lakes freeze over, the fish under the thick ice cover have different ways of passing the time.

You likely know the melody, but do you know the words in German? André Rieu & his Johann Strauss Orchestra performing Beethoven's "Ode to Joy" live in Maastricht.

Since the publication of his new single "Only in My Head" and the corresponding album Dust & Fantasy, German musician Andreas Bourani is permanently on the go, giving interviews and playing concerts. Copyright: Deutsche Presse Agentur [The German Press Agency]

You can order Andreas Bourani's album from iTunes or from Amazon.

Singer Andreas Bourani sings the song "Auf uns" ("To Us"), his way of expressing the thankfulness he feels for love and life.

Andreas Bourani sings his song "Auf anderen Wegen" ("On Different Paths") with piano and acoustic guitar accompaniment.

Andreas Bourani performs one of his earlier hits "Eisberg," which solidified his career as a promising young talent in the German pop music scene.

A commercial by the CDU (Christian Democratic Union): Chancellor Angela Merkel talks about the victory of the German women’s soccer team at the European Championships in 2009.