Der Schatz im Wüstensand - Turkmenistans antikes Erbe

In the heart of a metropolitan city of 15 million people and among the construction of a new billion-dollar transportation network, an archaeological sensation has been discovered: the ancient harbour of Theodosious, lost from the history books for over 1000 years.

In Morocco, new excavations on the site of Jebel Irhoud upset the generally accepted view of the dating of the appearance of man.

Thousands of terracotta warriors guarded the first Chinese emperor's tomb. This is their story, told through archeological evidence and reenactments.

Up to one million gladiators are thought to have died in arenas across the Roman Empire. And, although fascination with gladiators has been high, the details of their lives and deaths remain fragmentary. Now, with the discovery of an ancient Roman burial site containing 80 skeletons thought to be gladiator warriors, National Geographic recreates the world of the Roman arena and how six gladiators lived, fought and died.

National Geographic follows archaeologist Ehud Natzer in his discovery of the tomb of Herod the Great.

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.