Scientists and engineers fight to save Notre Dame Cathedral after the 2019 fire. When the roof of Notre Dame Cathedral erupted in flames in April of 2019, firefighters battled for nine gruelling hours to save the historic landmark. Still, Paris came alarmingly close to losing more than 800 years of history. Now engineers are in a different race against time: to rebuild the roof and secure the medieval structure of Notre Dame. Underneath the charred scaffolding and vaulted ceilings of the cathedral, scientists study the components of Notre Dame’s iconic structure to puzzle out how best to repair it.

In the fifth episode Neil deGrasse Tyson explores questions that have baffled scientists for centuries. Can we know the universe? Are our brains capable of comprehending the cosmos in all of its complexity and splendor?. We don't yet know the answers because our brain remains almost as much of a mystery to that questions as the universe itself. An abandoned orphan's dream opened the way to understanding the architecture of thought.

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.

Located in Central America, Tikal is one of the largest of the ancient cities of the Mayan civilization. Occupied for more than a millennium, Tikal, founded in the 8th century BC and nestled in the jungle of Guatemala, will have up to 12,000 structures and reach over 2 million inhabitants.
This episode shows its extraordinary pyramid-temples, designed with human power alone. Thanks to new technologies, the ancient Mayan city is revealed there, entirely reconstituted in 3D synthetic images.

Thanks to stunning reconstitutions with computer-generated images, this documentary retraces the manufacturing secrets of the largest and most exceptional city of Antiquity: Rome, the capital of the Mediterranean world. Three of its most emblematic monuments come to life. The Pantheon and its majestic dome, the sumptuous palace of Nero which covered a quarter of the city, and finally the legendary Colosseum, the largest Roman amphitheater ever built.

Deep inside the arctic circle, this team of elite engineers Is embarking on an epic endeavor. They're attempting to build a unique structure, one of the largest snow and ice hotels in the world. Constructed from more than 15,000 tons of snow and ice, spanning over 26,000 square feet, they are pushing to complete this ambitious build in an unheard-of six weeks.
Engineers brave the cold and nights of the Arctic Circle to build the Ice Hotel. Using cutting-edge tech, they'll construct this modern marvel in just six weeks.