National Geographic Lost Cave Temples (2009) 720p

The show highlights specific battles or skirmishes, where one commander is pitted against another. Using computer-generated imagery, many scenes are illustrated using cardboard-cutout-like figures to represent soldiers and equipment. Key battle decisions are examined, in order to explain the overall outcome of the battle.

Are they ancient road maps or messages for visiting aliens? Lying at the foothill of Peru's Andes Mountains is the site of one of the world's greatest mysteries. Etched, as if by giants, onto its arid, moonscape plains are immense lines that stretch for miles to form strange shapes recognizable only from the air.

Could one of Leonardo da Vinci’s lost works of art be hidden between a wall of an ornate building and another masterpiece? It’s a captivating theory that has had one prominent scientist chasing a legend for more than 30 years. This is the exclusive behind-the-scenes story of the hunt for a priceless masterpiece that could lead to one of the greatest discoveries the art world has ever known.

Explores beyond the Bible, building new biographies of the Apostles from 2,000 years of history strewn across the globe, including the latest discoveries, controversies and insights. Can the Bible’s puzzling, often baffling and contradictory stories of the Apostles, riddled with high stakes mysteries, magic and malevolence ultimately be understood through modern investigation? Deadly Journeys of the Apostles explores the ultimate hero’s journeys.

Travel back in time with National Geographic to the Holy Land to explore some of the Bible’s most intriguing mysteries. From the mysterious lost stories of Jesus to the greatest escape in history, National Geographic examines the fundamental questions surrounding the ancient texts to shed new light on old mysteries.

The jungle of Central America is one of the last great frontiers of archaeology. Over decades of work, the ancient civilisation of the Maya has gradually been revealed. But now technology is set to change everything as the biggest aerial LIDAR survey in the history of archaeology is laying bare a vast and complex civilisation for the very first time.

Wherever there is a Chinese community, including almost every city in the Western world, groups of Secret Societies known as Triads control the hard drug trade through bribery, extortion, and murder.
A major portion of the world's raw opium is grown in the Golden Triangle, the mountainous country on the borders of Laos, Burma, North Vietnam, and Thailand. After processing, the distribution of this heroin is under the control of Triad leaders in Hong Kong, Singapore, and Malaysia, who distribute it worldwide through their couriers. Western police officials did not realize either the extent of the heroin traffic or its organization until well into the 1970's.

Amidst air strikes and bombings, a group of female doctors in Ghouta, Syria struggle with systemic sexism while trying to care for the injured using limited resources.

How sick was Abraham Lincoln? The theories are plentiful: he had Marfan's syndrome, or syphilis or mercury poisoning. As the Civil War went on, Lincoln seemed to get sicker. There were multiple reports about his ill health during the spring of 1865. As a result, some people speculated recently that Lincoln was dying from a variety of illnesses, even before he was fatally wounded.

The documentary series "Ocean Wreck Investigation" examines the reasons why ships sink. What secrets can one still find out from the undersea wrecks - and what dangers do they sometimes harbor? Be it forgotten events, spectacular accidents or armed conflicts - there are different backgrounds for the tragedies that have happened on board the ships.