It's the most extraordinary feat of engineering in history, and one of the most iconic man-made structures on the planet - the Great Wall of China, stretching thousands of miles across barren deserts and treacherous mountains before finally plunging into the sea. But why did the Chinese go to such staggering lengths to build it, and what are the secrets that have enabled it to survive for over 2,000 years? Now, ground breaking science is re-writing its complex history and de-coding its mysteries to reveal that there is much more to the Great Wall than just bricks and mortar. Cutting edge chemistry reveals that the secret to the Great Wall's remarkable strength is a simple ingredient found in every kitchen, and a new survey also determines that its length is truly amazing, as we finally solve the enigma at the heart of the world's greatest mega-structure.

This is a documentary about children living around the Great Wall.

In the twilight years of the Cultural Revolution, a Chinese filmmaker slowly becoming blind tours the country screening her last film to peasants. In it, the woman imagines two "alien" lovers walking from end-to-end along the Great Wall to join each other in the middle, one last time. This documentary is an adaptation of Ulay and Marina Abramovic's final collaborative project, the 1988 performance "The Lovers: The Great Wall Walk."

The Great Wall of China stretches for thousands of miles, an iconic monument that can be seen even from outer space. Yet, despite being so visible, it's steeped in secrets, which are finally revealed in this extraordinary documentary produced by the Discovery Channel (with the help of NASA and various Chinese organizations). Learn about the history of the wall's construction, including the impetus for building it and lives lost in its creation.

In the last thirty-five years, some of China's policies have given Chinese women a new lease on life. Whether they have become corporate executives or storekeepers or have remained peasants, most women are still torn between their modern aspirations and a persistent, traditional status. With the discreet guidance of Nancy Cheng, a Shanghai scriptwriter, we witness some of the contradictions inherent in this situation.

Channel 4 docudrama following the history of the Great Wall of China, from the earliest building of simple mud walls to the construction of the series of stone fortresses built during the 16th Century in response to continued Mongol invasion.

After the disaster of March 2011, the Japanese authorities decided to build a gigantic 15 meter high, 500 kilometer long, anti-tsunami wall, separating the land and the ocean. But what is the environmental and human impact of this wall? The population is divided on their opinion: should they cut the island off from the sea or stay vulnerable to tsunamis? Is there another way?

A spectacular aerial journey following the world’s longest monument, the Great Wall. In slow-TV style, fly 2,500 kilometres along the wall, from the Yellow Sea to the Gobi Desert.

Great Wall. 4000 miles. 1800 years. Greatest feat of civil engineering. For one year, Nat Geo photographer Michael Yamashita shot the entire Wall and the people who live in its shadow. See why this immense human feat may never be surpassed.

Directed by Saul Levine.

This is an animated glimpse of the greatest city that ever was, with a hint of its magic power and a record of its downfall. The dilemma expressed is not so much one of religious faith, but in the administration of religious duties.

Chun, 28, Taiwanese, goes on a conflict-packed search journey with her Chinese guide, Ming, to find her father's long-lost first love, XiuQian, in China. Chun's father had promised XiuQian 60 years ago that he'd definitely come back to marry her. But not until recently, Taiwan and China were hostile to each other, he was never able to fulfill his promise. Chun and Ming grew up on two sides of the Taiwan Strait and were brought up with different values. They don't hesitate to cut each other down to size. Their turbulent romance unfolds in tears, laughter and a clash of values. The love story of two generations, across the Taiwan Strait, told with touching drama and biting comedy, is a poignant and entertaining road movie.

Bosnia, a summer's day at the country side 20 years after the latest war. Being the only witness of the secret plan of her favorite aunt Ljilja, little Maja takes a major step in her life. The boundaries of her childhood start to break apart.