The Lost Circle // TRAIN BRAIN

The Lost Circle

In a clearing where visitors lose their bearings, Hoia-Baciu's "Circle" has earned its place among the world's most mysterious locations.
See what lies within on #TheUnXplained Fridays at 9/8c on The History Channel

HISTORY

The HISTORY® Channel, a division of A+E Networks, is the premier destination for historical storytelling. From best-in-class documentary events, to a signature slate of industry leading nonfiction series and premium fact-based scripted programming, The HI...

Hovering Lights in Night Sky | The Proof is Out There

The Shot Heard Around the World | History's Greatest Mysteries

The Roswell Mystery

Hidden Messages

Sugar for Breakfast! | Hazardous History with Henry Winkler

Sacred Ark Contains Alien Tech

Miniature Armageddon

REAL Cylindrical UFO Spotted Vertical

Mysteries of the Aztecs

The Fall Out From the War | World War II With Tom Hanks

It's All Over, It's Victory | World War II With Tom Hanks

The Final Push | World War II With Tom Hanks

The Atomic Bomb is Dropped. | World War II With Tom Hanks

Secret Alien Messages at an Arizona Ranch

Can you find the fake June 19 headline before Brandon does?

The Frozen Secret

The Lost Circle

Leadership is Falling Apart | World War II With Tom Hanks

Reshaping Military Tactics During the Civil War | History's Greatest Machines

Roosevelt's Role in the War | World War II With Tom Hanks | #Shorts

Hazardous History | Sneak Peek

U.S. Marines Attack Mount Suribachi | World War II With Tom Hanks

Jul-2026 - WDHW - Social Vertical - 3

Atlantis’ Intriguing Extraterrestrial Connection

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The Nanteos Cup The Real Holy Grail #TheUnXplained

Another Shot at Making History! #SecretsDeclassified

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By the summer of 1944, the terror and tyranny of the Third Reich shrouds most of Europe.

De Gaulle and Eisenhower Decide to March on Paris | World War II With Tom Hanks | #Shorts

Two Critical Events Are About to Bring the War Home | World War II With Tom Hanks

“Wait! What Was That?!” #TheSecretofSkinwalkerRanch

TICKING TIME BOMB Miracle Appliance | Hazardous History

Safety Requires Sacrifice | World War II With Tom Hanks

Ancient Texts Describe Extraordinary Knowledge | Ancient Aliens

The Innovations Behind Rocket Technology | History's Greatest Machines with Dolph Lundgren

Charles Brooking Served on a U.S. Navy PT Boat | Save Our History

Think you can win the $20 before Mishel? ? #YourBirthdayInHistory

Vanished Without A Trace | Secrets Declassified with David Duchovny

The Mystery of King Montezuma's Lost Fortune | The UnXplained

A More Powerful Bomber is Needed | World War II With Tom Hanks

The B-29 Bomber | World War II With Tom Hanks

A mysterious glowing object appears to stop midair before falling nearly 2,000 feet away

A Reckless Thrill That Put Countless Lives at Risk.

Invasion of Northern Europe

"Tic Tac" UFO | Ancient Aliens

Engineering Breakthroughs | History's Greatest Machines with Dolph Lundgren

George Washington Father of His Country | Special

Jul-2026 - SPCL - Social Vertical - 1

George Washington : Father of His Country | Special

A covert WWII mission. A deadly new radar. And a heist that pushed the limits of bravery.

Operation Biting: Daring Heist | Secrets Declassified with David Duchovny

Jun-2026 - WWTH - Social Vertical - 13

A shelter is more than four walls, it's a survival strategy | Alone on History

Churchill Proposes They Attack Italy Next | World War II With Tom Hanks | #Shorts

Jaw-dropping stunts, Dangerous Jobs, and High-Risk Spectacles | Hazardous History with Henry Winkler

Ancient civilizations have looked to the stars for answers | Ancient Aliens

Uncover The Machines That Powered Exploration | History's Greatest Machines with Dolph Lundgren

Mussolini's 21-Year Fascist Reign Is Over | World War II With Tom Hanks | #Shorts

Kamikaze Attack at the Battle of Okinawa | Save Our History

Liz Takes on a History Challenge

A single impact may have changed life on Earth forever | The UnXplained

A fugitive thought he'd disappeared forever | Secrets Declassified with David Duchovny

Will This Critical Setback Impact Survival? | Alone on History

Capturing Stalingrad | World War II With Tom Hanks

Mysterious Magnetic Anomaly at Skinwalker Ranch | The Secret of Skinwalker Ranch

What could possibly go wrong? | Hazardous History with Henry Winkler

Were These Gods Visitors From Space? |Ancient Aliens

The World of Espionage | History's Greatest Machines with Dolph Lundgren

The Germans Are Hit by the Russian Winter | World War II With Tom Hanks

Joe Louis, A Symbol of Perseverance | Clash Of Nations: Joe Louis vs. Max Schmeling

Remarkable Secret Missions | Secrets Declassified with David Duchovny

Breaking the Enigma Code | World War II With Tom Hanks

One Ring. Two Nations | Clash Of Nations: Joe Louis vs. Max Schmeling

Deciphering the German Codes | World War II With Tom Hanks | #Shorts

Your Shelter Isn't Just Where You Sleep, It's What Keeps You In The Game | Alone

Rescue Plans Fall Apart |Secrets Declassified with David Duchovny

Operation Torch | World War II With Tom Hanks | #Shorts

Mind-Bending Phenomena

Push Size to the Limit | History's Greatest Machines with Dolph Lundgren