America Declassified
JFK's assassination is investigated 50 years later; a nuclear waste dump and US Quiet Zone.
JFK's assassination is investigated 50 years later; a nuclear waste dump and US Quiet Zone.
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The Terracotta Army is one of China's greatest treasures, but there are still dark secrets.
The lost city of Machu Picchu is one of the greatest mysteries in archaeology.
A castle in Scotland could be the home of King Arthur's legendary Round Table.
Ancient magic, bizarre rituals and brutal murder surround the strange monument known as Stonehenge.
The astonishing secrets of the world's most iconic monument, the great Sphinx at Giza.
New technologies reveal the startling truth behind the largest temple ever built, Angkor Wat.
Giant pyramids in Mexico are revealing secrets of a civilization that vanished 1,400 years ago.
New discoveries explore the dark secrets of Tutankhamun's tomb.
A look at whether the desire for gold is the result of extraterrestrial landings in the past.
New evidence and modern-day UFO sightings have experts rethinking Native American myths.
Evidence suggests contact with aliens may have influenced humankind and many of its sacred sites.
The Royal Air Force regularly encounters UFOs, but the British government denies the sightings.
A Russian hole to hell in the Arctic; military base in America's wild west; a strange looming tower.
Structure on a sinister mountain; industrial compound swallowed by forest; a run in a sand dune.
A strange Cuban prison; escape route built for Armageddon; underwater marvel that changed history.
"Copper Kings" William A. Clark and Marcus Daly wage war to control Montana's minerals.
William Randolph Hearst and Joseph Pulitzer engage in a high-stakes newspaper circulation war.
Clayton learns if his dino skeleton belongs to a T-Rex or a nanotyrannus.
Clayton returns to his ranch in Montana to hunt for quick finds at Old Faithful.
Clayton must haul his 20,000-pound dinosaur fossil over 200 miles to a lab.
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