The top destination for all things history.

HISTORYCHANNEL

Watch over 2 000 of HISTORY’s most fascinating documentaries and series  anytime  commercial-free.

HISTORY VAULT

Across cultures and throughout history, stories of individuals receiving wisdom from otherworldly sources are widespread.

Ancient Aliens: Origins

Alien Messengers

For centuries, ancient monuments and mysterious markings, visible only from the sky, have captivated and puzzled researchers; considering if these could sites be more than just ancient wonders.

Alien Beacons

History - fascinating and exclusive programs on subjects ranging from American and world history to explorations of major events in politics, entertainment and social history.

History

Earth's deep, uncharted waters have long been a source of wonder; from legends of aquatic cities ruled by gods and creatures to frequent UFO sightings, considering if these might point to an otherworldly presence lurking in Earth watery depths.

Submerged Evidence

The Antikythera Mechanism, an ancient Greek astronomical device retrieved from a shipwreck, is the world's oldest known analog computer; its discovery sparks debate about the technological capabilities attributed to ancient civilizations.

Extraterrestrial Devices (Alien Technology)

Evidence suggests the ancient megalithic site of Stonehenge once functioned as an important solar and celestial observatory.

Alien Observatories

The Great Pyramid of Giza remains a captivating mystery of the ancient world, with compelling evidence suggesting it may have functioned as an ancient power plant.

Mystery of the Pyramids

Throughout history, legendary weaponry and advanced technologies have often been attributed to divine or extraterrestrial influences. Japanese swords were believed to be forged with the help of the supernatural, while mythical weapons granted by otherworldly beings were wielded by iconic figures like Joan of Arc and King Arthur. The enigmatic Greek fire is yet another weapon attributed to these so-called-gods.

Alien Arsenal

Exploring underground structures; including the Longyou Grottoes in China, believed to be over 15,000 years old, secret tunnels linked to Native American lore of the Ant and Snake People, ancient libraries from a lost civilization; and more.

Mysterious Underground Worlds

Compelling clues about mankind's true origins; evidence within religious texts, records from Earth's first civilizations, unexplained anomalies in human physiology, and clues embedded within DNA.

Human Genesis

Ancient Astronaut theorists propose that descriptions of sky gods and star beings might reflect real encounters with extraterrestrial visitors in the remote past.

Sky Gods and Star Beings

Ancient Astronaut theorists Giorgio Tsoukalos, William Henry and Jason Martell delve into the archives to reveal compelling evidence of ancient flying machines and explore the possibility that these extraterrestrial close encounters persist.

Ancient Close Encounters

An argument for the Ancient Astronaut theory is the engineering evident in the construction of ancient megalithic sites worldwide; colossal stones, precise cuts, and fitted blocks at many of these sites hint at the prospect of advanced technology.

Extraordinary Engineering

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Revisiting the most compelling mysteries explored over the past 15 years of "Ancient Aliens"; expertsengage in thought-provoking conversations on topics central to the Ancient Astronaut Theory.

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History HD reveals the power and passion of history as an inviting place where people experience history personally and connect their own lives to the great lives and events of the past.

S1 E10 | Submerged Evidence

E12 | Alien Messengers

E11 | Alien Beacons

E10 | Submerged Evidence

E9 | Extraterrestrial Devices (Alien Technology)

E8 | Alien Observatories

E7 | Mystery of the Pyramids

E6 | Alien Arsenal

E5 | Mysterious Underground Worlds

E4 | Human Genesis

E3 | Sky Gods and Star Beings

E2 | Ancient Close Encounters

E1 | Extraordinary Engineering