Science Channel HD

A ghost town in the American West was once a Gold Rush hotspot and one of the most violent places in America; today, there are legends of a secret treasure buried in the surrounding hills, and new discoveries might finally reveal its true location.

A strange complex of tunnels on the grounds of a mansion are under lock and key for a century; since its rediscovery, some believe its mysterious place is a gate to hell; new discoveries reveal its secret purpose and why it was abandoned.

Three inmates are said to have escaped from Alcatraz prison, but even today, it's never been proven; new evidence might finally crack this notorious cold case, as experts use forensic science and cutting-edge technology to investigate fresh leads.

The ruins of an abandoned prison are evidence of a chaotic riot that put the prisoners in charge; special access to its burnt-out interior reveals how inmates took over Ireland's Alcatraz and why it is deserted today.

When a Chinese moon rover breaks down, a scientist at NASA points to a mysterious material that seemed to sabotage the Apollo missions decades earlier; the Rosetta spacecraft discovers a comet that appears to be singing.

The discovery of geysers on a moon; NASA's mission to detect life; an object is spotted approaching an asteroid.

A piece of the sun seems to have vanished; the Hubble spots an unidentified object traveling faster than light.

From the Pyramids to the Parthenon and Big Ben in London, "Unearthed" helps answer questions and crack unsolved mysteries surrounding some of the greatest wonders of the ancient and modern world. CGI animation and other state-of-the-art technology breaks down how the iconic structures and monuments were designed, built, used and, in some cases, lost and rediscovered. The series attempts to show th

The legendary city of Kish, Iraq, lies at the cradle of human civilization and home to some of the world's first kings; using cutting-edge tech, experts investigate the buried secrets of this lost city to uncover the first origins of royalty.

Nearly a decade after the ancient site of Nimrud was destroyed by terrorists, experts return to salvage the wreckage; archaeologists piece together the remaining ruins to reveal the origins and brutal decline of a lost empire.

In 373 B.C., the Greek city of Helike vanished; archaeologists believe they've found the ruins of the great lost metropolis; using CGI, experts re-create the city's final moments and reveal its links to the greatest lost land of all -- Atlantis.

The Red Pyramid at Dahshur is a revolutionary megastructure and the first true pyramid ever constructed in Ancient Egypt; experts investigate to reveal the pharaoh who built it and the mystery behind its trailblazing design.

The ancient necropolis of Abusir contains strange megastructures unlike any discovered in Egypt; experts gain rare access to investigate lost tombs and forgotten rituals to reveal the secrets of Egypt's Sun Cult pharaohs.

The lost city of Olous: A great metropolis submerged in the Mediterranean; archaeologists uncover its secrets using pioneering technology and CGI reconstruction.

The Dendera Temple is one of the best-preserved temples in all of Egypt; experts decipher its mystifying zodiac images and uncover the ceremonial events that took place at this sacred site, and stunning CGI rebuilds this grand complex in its prime.

Satellite evidence of a strange building on a mysterious island owned by Jeffrey Epstein points to something sinister; experts use cutting-edge technology to investigate why it was built and what goes on here.

When investigators spot strange anomalies in the Amazon jungle, the discovery stokes rumors of a long-lost Nazi base in the Americas.

When satellite images reveal spot a strange white substance in the land of the Aztecs, experts investigate the site for extraterrestrial connections; what they find could explain the rise of one of the world's greatest civilizations.

Satellite images capture bizarre structures in the remote and inhospitable swamplands of Louisiana; experts investigate a forgotten war-torn fortress with a mysterious connection to the sinking ruins of a classified military installation.

New evidence reveals dozens of bizarre circular structures buried in the remote hills of Norway; an expert investigation uncovers a mysterious burial ground that may have been a portal to the Viking spiritual realm.

Satellite images reveal a long-lost village buried in a dense forest; archaeologists investigate and uncover a mysterious gravesite with the remains of decapitated skeletons and possible evidence of vampire burials.

Satellite images capture bizarre structures in the remote and inhospitable swamplands of Louisiana; experts investigate a forgotten war-torn fortress with a mysterious connection to the sinking ruins of a classified military installation.