Simply the Best Documentaries

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The Outer Planets
Racing Extinction
The Oceans
Frenzied Killing
Pluto and Beyond
Journey to Space
Cosmic Phenomena
Land Of The Mammoth
The Age of Aging
Alien Technology
The Fourth Phase
The Story of China Ancestors
Audrie and Daisy
Over the Rainbow
Seasonal Forests
Life: Primates
Workingman Death
Dawn Of Humanity
This Is It
Life Rocky Start
14 Days of Blood
Hitting the Apex
A New War Begins
The Nazis, A Warning From History. Episode 2
Race For Rockets
Lack of Humility
When East Meets West
The Green Prince
Hot Girls Wanted
Game Over Kasparov and the Machine
Our Voyage to the Stars
Travellers Tales
Tiny Giants
The Indian Ocean
Oasis Supersonic

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Great Cathedral Mystery
Great Cathedral Mystery 2014

The dome that crowns Florence's great cathedral of Santa Maria del Fiore, the Duomo, is a masterpiece of Renaissance ingenuity and an enduring source of mystery. Still the largest masonry dome on earth, it is taller than the Statue of Liberty and weighs as much as an average cruise ship. Historians and engineers have long debated how its architect, Filippo Brunelleschi, kept the dome perfectly aligned and symmetrical as the sides rose and converged toward the center." More than four million bricks could collapse at any moment -- and we still don't understand how Brunelleschi prevented it. To test the latest theories, a team of U.S. bricklayers will help build an experimental "mini-Duomo" using period tools and techniques.

Category:Art  Duration:53:00   

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