Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in an elaborate pattern that mirrors the yearly cycle of the sun and the 19-year cycle of the moon. How did an ancient civilization, with no known written language, arrange its buildings into a virtual celestial calendar, spanning an area roughly the size of Ireland?

The Scythians, skilled horsemen and nomadic conquerors, built a feared empire in the vast Eurasian s...

Professional, native and antiquarian researchers combine to investigate the archaeological history a...

A strange story from Somerset, England about a filmmaking farmer and the inspiring legacy of his lon...

This feature-length documentary is a portrait of eclipse chasers, people for whom solar eclipses - a...

Cave paintings and lunar calendars exist in the caves and remains of prehistoric hunters studied rec...
![Pico Sacro [The Holy Mountain]](https://image.tmdb.org/t/p/original//hr3xO9cKU0oRw8lEa3lXGTOKFRA.jpg)
In a leafy forest, a Galician sovereign who longs to attain wisdom meets a sorcerer, who tells him: ...

Documentary about the Griffith Observatory, shown at their Leonard Nimoy Event Horizon Theater

Explore the origins of the Celts, uncovering their culture through preserved salt mines, ancient art...

Set in the Mayan civilization, when a man's idyllic presence is brutally disrupted by a violent inva...

A Muslim ambassador exiled from his homeland joins a group of Vikings, initially offended by their b...

A second part mini documentary series of "The Middle" stories of UFO and Extraterrestrial contact.

Former major league baseball player Moe Berg lives a double life working for the Office of Strategic...

A Danish writer travels to Mexico with the purpose of locating a mysterious Apache tribe that ferven...

Things That Go Bump in the Night: Tales of Haunted New England takes you on a journey throughout his...

What forms might life take in the Solar System and beyond? In the Academy's newest original planetar...

Dr. Mark Fairchild, world-renowned archaeologist, traces the hidden years of Saint Paul's life in th...

Explores the Pyramids of Giza as Egyptologists try to unravel the mysteries and decipher the clues b...

Photo sequence of the rare transit of Venus over the face of the Sun, one of the first chronophotogr...

Documents the cultural and ecological impacts of coal stripmining, uranium mining, and oil shale dev...

An incredible travel through space and time between the walls of the Paris Observatory, which is cel...