Discovery

Mercury, Venus, and Mars are all super low on water – so where did ours come from and why do we have so much of it? We think our water came from a few unlikely sources: meteorites, space dust, and even the sun.

Everyone knows that a giant rock from outer space hit the planet millions of years ago and wiped out the dinosaurs. Now with advanced technology, researchers have been able to put together a new timeline showing what really happened.

Dig into the Maya myth of the moon goddess, Ix Chel, and follow her story as she falls in— and out of— love with the sun god.

The seven Wonders of the World! From the mysterious Great Pyramid of Giza and how it was built to the Great Wall of China and Machu Picchu, these are the Secrets Behind the 7 Wonders of the World!

Ancient Astronaut Theorist, Georgio, takes a trip to Cairo, Egypt to check out a chamber discovered within the walls of the Great Pyramid.

Discover everything you need to know about Bastet (aka Bast), the Ancient Egyptian Cat Goddess in this animated Egyptian Mythology documentary.

Experience daily life in ancient Egypt in this 3D animated documentary.

Hidden away in the jungle of Guatemala, Tikal saw the light of day in the 8th century BC. Inhabited for over a thousand years, the ancient city would encompass up to 12,000 structures and 2 million inhabitants. It reveals its extraordinary temple-pyramids...

Archaeologists hunt for the lost tomb of Cleopatra. One team dives the sunken city of Alexandria and an explorer unearths a secret underground tunnel.

The Rise and Fall of Pullman's Utopia

The team investigate a possible fifth century cemetery in a ploughed field, where they find a metal shield boss. One male skeleton is holding a drinking vessel.

On May 18, 1980, the Mount St. Helens became the largest and most destructive volcanic eruption in U.S. history. By the end of its cycle of fire and fury, 57 people had died.

Wacker Drive is a major multilevel street in Chicago, Illinois, running along the south side of the main branch and the east side of the south branch of the Chicago River in the Loop.

Why are there so many unanswered questions surrounding Atlantis?

At 5:30 a.m., July 16, 1945, scientists and dignitaries awaited the detonation of the first atomic bomb in a desolate area of the New Mexico desert aptly known as Jornada del Muerto--Journey of Death, in Season 9, Episode 21, "The Manhattan Project".

There are 50 active volcanoes in Alaska, two of which blow their tops every year. But nothing compares to the 15 cubic kilometers of magma that spewed from this volcano in 1912.