It is the world's most mysterious manuscript. A book, written by an unknown author, illustrated with pictures that are as bizarre as they are puzzling - and written in a language that even the best cryptographers have been unable to decode.

After beginning in Vienna, the Danube riverbank forests extend to the gates of Bratislava, linking the two capitals like a green ribbon, forming a unique wildlife habitat in the heart of Europe. A few years ago a 36 kilometer section was turned into a national park that now protects the last undeveloped stretch of the Danube River and also the last riparian zone of its size in Central Europe.

Although it crosses six countries and is over 3,500 kilometers long, the Zambezi is one of the least known rivers in the world. So it's time to take to the water and discover this mystical, ever-changing river, whose mood changes from day to day, kilometer to kilometer, and which is the very essence of life for millions of animals and people in this often drought-stricken, water-scarce region!

About the diverse animal life in and around the stadium.

In 1924, British climber George Mallory and his partner Andrew Irvine attempted to conquer Everest for the third time. They never returned. Could they have been the first to successfully climb the mountain before meeting their deaths? In 1999, German geologist Jochen Hemmleb discovered Mallory's body just below the summit, reigniting speculation. In 2010, he organized a new expedition to follow up on this sensational discovery. His goal: to find the base camp from which Mallory and Irvine set out to conquer the summit.

Docudrama examining the life of Mustafa Kemal Atatürk, who founded the Republic of Turkey from the ruins of the Ottoman Empire. Monuments to him can be found in every city; the anniversary of his death is commemorated every year; derogatory words about him are punishable by law. Rarely has a politician changed a society so radically in such a short time as Atatürk did Turkey.

The Zambezi is one of the world's great rivers, yet apart from the spectacular Victoria Falls, large parts of its course are virtually unknown. Never before has this mighty river been portrayed so comprehensively on film as in this two-part series. The Zambezi flows through the continent's most magnificent ecosystems and offers a glimpse of all the classic African animal species. It forms a lifeline through Africa's most impressive landscapes and determines the fate of the indigenous people and all other forms of life.

In some cultures, jackals were pursued and condemned as pests that fed on parasite-infested carcasses. In others, such as Ancient Egypt, they were divinely celebrated. This documentary accompanies a young scientist, who is drawn to these mythical mammals, and takes us on a journey to explore golden jackals, from Egypt to the barren hills of Greece.

The summits and sheer mountain ridges of Austria’s "Little Siberia" funnel the freezing air from snow-covered peaks into a gigantic hollow – a high-level plateau at 1,000 metres from which it cannot escape: Lungau is Austria’s coldest region. Creeks and streams start higher here, and create bogs, moors and countless alpine lakes. Summer is short but lively, as eagles rear their precious young and ermines eat their fill before the sparse winter returns, while black alpine salamanders give birth to live miniature versions of themselves beneath the tree-line.

International documentary about ravens.