The National Geographic magazine is famous the world over for its impressive journalism on science, plantlife and animals. Even more so its photographic content is unsurpassed in the magazine market - at least on the topic of natural sciences. A perfect bound magazine, National Geographic is one to collect.

British writer and historian William Lindesey explores the most remote parts of China's national monument. He questions peasants and herders, experts and scholars, in a bid to learn how long the Great Wall is.

The National Geographic magazine is famous the world over for its impressive journalism on science, plantlife and animals. Even more so its photographic content is unsurpassed in the magazine market - at least on the topic of natural sciences. A perfect bound magazine, National Geographic is one to collect.

Hitler's state-of-the-art killing machine the Bismarck was thought to be invincible but, for all the wild claims, it now lies at the bottom of the Atlantic Ocean. Despite being the biggest, most powerful and most heavily armed battleship of her time, she was sunk just days into her maiden voyage. Who Sank The Bismarck? features historical reconstructions and footage from the first manned dive to the Bismarck's wreck to reveal the German weaknesses - and Allied strengths - which led to the once-mighty ship's demise. Discover the tactical errors which exposed Hitler's mammoth sea weapon to Allied attack

How does the drug trade work? Can it be stopped or should it be regulated? And what are the personal costs? Those are just some of the questions answered in this miniseries, a comprehensive look at society's most abused drugs. First-person perspectives from traffickers, dealers, users, law enforcement and medical professionals detail how the drugs are processed and moved onto the streets, and the effects they have on the human body.

How does the drug trade work? Can it be stopped or should it be regulated? And what are the personal costs? Those are just some of the questions answered in this miniseries, a comprehensive look at society's most abused drugs. First-person perspectives from traffickers, dealers, users, law enforcement and medical professionals detail how the drugs are processed and moved onto the streets, and the effects they have on the human body.

Through breathtaking discoveries, archaeologists are uncovering the early years of the ancient Maya to reveal a dynamic, sophisticated culture that was flourishing before the time of Christ. The Preclassic Mayaonce dismissed as primitivecreated massive pyramids, elaborate art, early writing, and more. Join National Geographic's Dawn of the Maya as it investigates the rise one of the world's greatest and most mysterious civilizations.

Alien and remote for countless centuries, Australia remains today an almost mystical land, a land only recently disturbed by the arrival of man. Long before the time of man, there appeared here creatures among the most bizarre on Earth. So unlike other animals are they that many early European explorers could hardly believe they were real. Even today, three centuries later, many of the questions the animals pose to science remain unanswered.

In the south of England road builders dig foundations for a new highway. Cutting through the chalk, the excavator makes a shocking discovery. In a shallow grave is a tangled mass of headless skeletons, and to one side, a pile of severed skulls. Viking Apocalypse pieces together the events that led up to this massacre, revealing secrets of the Scandinavian warriors who once brought terror to Britain. Cutting-edge forensics together with ancient texts and heroic sagas tell a story of greed, betrayal and retribution, bringing the Vikings back from the dead.

Using cutting edge laser technology to analyze what lies behind his painting, Mona Lisa, this investigation delves deep into the genius of da Vinci.