Athens, Alexandria, Tikal and Rome: these legendary cities are some of the world's most famous archaeological sites. And yet, they still have not revealed all their secrets. The ambition of this series is to resuscitate the first megalopolises of universal history.
In the first episode, the extraordinary city of Athens, the richest and most powerful in all of ancient Greece. The film leads us in the footprints of a nation of extraordinary builders, thinkers, and inventors of incredible machines.

The disappearance and fate of the tomb of Alexander the Great in Alexandria is among the most momentous and tantalising of all the mysteries we have inherited from the ancient world. Generations of scholars and historians have succumbed to the allure of the quest.
Now archaeologist Pepi Papakosta is on a mission to find Alexander the Great's lost tomb. Excavating in a public garden in the center of Alexandria, Egypt, the city he founded 2,300 years ago, she has discovered a rare marble statue of Alexander, Greek treasures and secret tunnels. But Pepi's biggest find is an extraordinary discovery even she was not expecting.

An ancient bronze disk adorned with gold may contain the oldest images of the cosmos ever discovered; using new research and the latest tech, experts investigate if this artefact could be the work of a prehistoric astrologer. Is it just a decorative disc or is there some hidden meaning?
A strange 11,000-year-old deer skull can have links to a British Atlantis.

In episode two, we discover the golden age of the La Tene Celtic warrior and reveal how their world extended as far as central Turkey. But by the middle of the first century BC, the Celts were under threat from an expanding Roman Empire, and the Gallic warrior Vercingetorix would challenge Julius Caesar in an epic battle that would shape the future of Europe.

Of the Seven Wonders of the Ancient World, the Hanging Garden of Babylon is the most elusive of these constructions of classical antiquity. While traces have been found of the Great Pyramid of Gaza, the Temple of Artemis at Ephesus, the Statue of Zeus at Olympia, the Mausoleum of Halicarnassus, the Colossus of Rhodes and the Lighthouse of Alexandria, centuries of digging have turned up nothing about the lost gardens of Babylon – until now.
Why, in the nearly 3,000 years since the gardens were presumably built, has no archeological evidence ever been found to support their existence? Is the Hanging Garden of Babylon a myth or a mystery to be solved?
Travel with Dr. Stephanie Dalley of Oxford University’s Oriental Institute and author of The Mystery of the Hanging Garden of Babylon, to one of the most dangerous places on earth, as she sets out to answer these questions and prove not only that the gardens did exist, but also identify where they most likely were located, describe what they looked like and explain how they were constructed.

The Bronze Age had the first large urban centers, powerful kingdoms and armies, writing, and trade routes across vast areas. What led to the collapse of the city-state entities and the end of the Bronze Age? Possibly a perfect storm of uncontrollable factors that are still being researched.