#1 on History
Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
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Most watched on History
Top 10 Series
Ancient Aliens
The Curse of Oak Island
Pawn Stars
Forged in Fire
Modern Marvels
Swamp People
Mountain Men
Alone
American Pickers
The Universe
Everyone's watching
Popular on History
The UnXplained
The Secret of Skinwalker Ranch
History's Greatest Mysteries
World War II with Tom Hanks
Ice Road Truckers
WWII in HD
The Food That Built America
The UnBelievable with Dan Aykroyd
Counting Cars
Gangland Undercover
Secrets Declassified with David Duchovny
The Proof Is Out There
America: The Story of Us
Hazardous History with Henry Winkler
Holy Marvels with Dennis Quaid
Mail Call
The Men Who Built America
The World Wars
Mysteries Unearthed with Danny Trejo
America's Book of Secrets
American Pickers: Best Of
Life After People: The Series
Cities of the Underworld
Colosseum
The Hunt
FDR
Grant
Navy SEALs: America's Secret Warriors
The UnXplained Special Presentation
History's Greatest Escapes with Morgan Freeman
Fresh releases
Latest Arrivals
World War II with Tom Hanks
Secrets Declassified with David Duchovny
Thomas Jefferson
The UnBelievable with Dan Aykroyd
Beyond Skinwalker Ranch
Alone Australia
History's Greatest Heists with Pierce Brosnan
The Bermuda Triangle: Into Cursed Waters
Colosseum
Theodore Roosevelt
Abraham Lincoln
History's Greatest Escapes with Morgan Freeman
The Proof Is Out There
Beyond Oak Island
History's Greatest Mysteries
Grant
The Secret of Skinwalker Ranch
Washington
The Food That Built America
The UnXplained
Critically loved
Top Rated
The Men Who Built America
The Universe
Forged in Fire
Life After People: The Series
The Curse of Oak Island
Ancient Aliens
Pawn Stars
On History
Crime Series
American Ripper
Gangland Chronicles
American Godfathers: The Five Families
History's Greatest Heists with Pierce Brosnan
Prison Chronicles
MysteryQuest
On History
Sci-Fi & Fantasy
Ancient Aliens
The Proof Is Out There
On History
Mystery Series
Ancient Aliens
The Curse of Oak Island
History's Greatest Mysteries
Brad Meltzer's Decoded
The Death Coast
On History
Docuseries
Ancient Aliens
The Curse of Oak Island
Modern Marvels
Mountain Men
The Universe
The UnXplained
The Secret of Skinwalker Ranch
History's Greatest Mysteries
World War II with Tom Hanks
WWII in HD
The Food That Built America
The UnBelievable with Dan Aykroyd
Secrets Declassified with David Duchovny
The Proof Is Out There
America: The Story of Us
Hazardous History with Henry Winkler
Holy Marvels with Dennis Quaid
Mail Call
The Men Who Built America
The World Wars