They are some of the biggest pyramids on the planet, millions of tons of stone and earth towering above the landscape in a display of massive wealth and power. But it wasn't the pharaohs that built these pyramids. This is the majestic ancient city of Teotihuacán, Mexico, home to one of the most powerful civilizations of its time. But why, around 750 AD, did the advanced civilization that created Teotihuacán suddenly vanish? The identities of its founders, the language they spoke and even the original name of the city are all unknown. DNA analysis of bodies from Teotihuacán shows they weren't Mayan, Incan or Aztec, but an entirely different civilization. It was assumed to have been a peaceful, utopian society, but the latest discoveries are revealing a much darker scenario. In the depths of Teotihuacán's pyramids, experts have uncovered vault after vault filled with curious human remains.

Does infinity exist? Can we experience the Infinite? In an animated film (created by artists from 10 countries) the world's most cutting-edge scientists and mathematicians go in search of the infinite and its mind-bending implications for the universe. Eminent mathematicians, particle physicists and cosmologists dive into infinity and its mind-bending implications for the universe.

On April 30, 1970, President Richard Nixon shocked the nation by announcing the U.S. invasion of Cambodia. At college campuses across the country, masses of students took to the streets in protest. Five days later, four Kent State students would be shot dead by National Guardsmen. The mayhem that followed has been called the most divisive moment in American history since the Civil War.
The Day the 60s Died chronicles the chaotic month of May 1970, when it seemed America was at war with itself. From the students and guardsmen who witnessed the Kent State shootings to a young G.I. in the Cambodian jungle, how did the events of that turbulent spring affect who these people became? How have the shockwaves from these events reverberated into the present? During May 1970, frustration and anger split American society apart and we still live in the aftermath of that rift. The Day the 60s Died is an important story to be told now as our nation grapples with the growing divide in how Americans see their nation and each other.