April 1453. Sultan Mehmed II unleashes an artillery attack on Constantinople unlike any the world has ever known. It's the largest concentration of cannons that the world had seen in one place. The monumental task of keeping the Ottomans out of Constantinople falls on the shoulders of Genoese soldier of fortune Giovanni Giustiniani. He and his men must defend 14 miles of city walls. Mehmed launches his ambitious plans to break through the walls of Constantinople, but Giustiniani's mercenaries manage to forestall the attacks.

Evolution tells us that all life exists for only one purpose: to reproduce. But is that all there is? How could such a simple imperative lead us to create great art and civilizations? A new theory suggests that instead of passing on genes, our ultimate purpose is to process and pass on information. We are the universe figuring itself out. Scientists dig deep into DNA, chemistry, technology and engineering to find the meaning of life. One thing is certain: living is easier if you find a reason for living.

Morgan Freeman produces hosts and narrates this exploration of the greatest mysteries of the universe. The four forces governing our universe are phenomenally finely tuned, so finely that it had led many to the conclusion that someone, or something, must have calibrated them: an alien gameseter who's created our world as the ultimate SIM game for his own amusement.

A two-part documentary illuminating in sweeping scope and vast detail the rise, fall, and epic comeback of global icon Tiger Woods. Using Jeff Benedict and Armen Keteyian's best-selling book 'Tiger Woods' as a resource, the series is driven by never-before-seen footage and revealing interviews with those who know Tiger best.
Alex Gibney executive produces alongside filmmaker Matthew Heineman and Matthew Hamachek as directors of the film.

This look at the life, success and scandals of golf legend Tiger Woods shows original footage and revealing interviews, including his former caddy and close friend, Steve Williams; golf legend and six-time major champion Sir Nick Faldo; Earl Woods' friend and biographer, Pete McDaniel; Tiger's first true love, Dina Parr; as well as Rachel Uchitel, the woman at the center of the sex scandal that forever altered Tiger's world, breaking her silence for the first time.

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.