In 1977, a remote Brazilian island was visited nightly by strange flying objects, leaving people with bizarre puncture marks and blood loss. What happened?

How can ancient tombs across the world have so many remarkable similarities? Ancient Astronaut theorists believe that some of these tombs were designed with the help of extraterrestrials.

Brad Meltzer and viewers are on the hunt for lost history. Among the missing: actual lunar rocks brought back from the moon by American astronauts during the Apollo space program - and later stolen from NASA headquarters in a daring heist. 

Discovering the final resting place of Cleopatra is a lifelong passion for many an archaeologist. Now Zahi has permitted some to dive into the Mediterranean Sea and bring up a nine-ton pylon that is a confirmed part of her shrine.

Discover the gripping story of how 12 surprising forces have shaped human civilisation into what we know today. First, the lust for luxury in our lives.

Discover the gripping story of how 12 surprising forces have shaped human civilisation into what we know today. Here, the focus is on the desire to forge weapons.

When a gamma ray burst from two colliding stars hits the atmosphere, the radiation wipes out half the planet. The Americas face a slower death as ultraviolet radiation and starvation threaten to send the human race into total extinction.

Homer's The Odyssey is the most famous epic ever written, a timeless tale of adventure filled with mythological beasts and vengeful gods. But could it have actually happened? Divers have uncovered remains that may be linked to the story of Odysseus.

Cities Of The Underworld

From vice dens and top-secret railroad lines to sunken shipwrecks and the spark that created the A-Bomb, Don Wildman unearths the true history of the Windy City.

In 1977, a remote Brazilian island was visited nightly by strange flying objects, leaving people with bizarre puncture marks and blood loss. What happened?

How can ancient tombs across the world have so many remarkable similarities? Ancient Astronaut theorists believe that some of these tombs were designed with the help of extraterrestrials.

Brad Meltzer and viewers are on the hunt for lost history. Among the missing: actual lunar rocks brought back from the moon by American astronauts during the Apollo space program - and later stolen from NASA headquarters in a daring heist. 

Discovering the final resting place of Cleopatra is a lifelong passion for many an archaeologist. Now Zahi has permitted some to dive into the Mediterranean Sea and bring up a nine-ton pylon that is a confirmed part of her shrine.

Discover the gripping story of how 12 surprising forces have shaped human civilisation into what we know today. First, the lust for luxury in our lives.

Discover the gripping story of how 12 surprising forces have shaped human civilisation into what we know today. Here, the focus is on the desire to forge weapons.

Homer's The Odyssey is the most famous epic ever written, a timeless tale of adventure filled with mythological beasts and vengeful gods. But could it have actually happened? Divers have uncovered remains that may be linked to the story of Odysseus.

Cities Of The Underworld

From vice dens and top-secret railroad lines to sunken shipwrecks and the spark that created the A-Bomb, Don Wildman unearths the true history of the Windy City.

In 1977, a remote Brazilian island was visited nightly by strange flying objects, leaving people with bizarre puncture marks and blood loss. What happened?

How can ancient tombs across the world have so many remarkable similarities? Ancient Astronaut theorists believe that some of these tombs were designed with the help of extraterrestrials.

Brad Meltzer and viewers are on the hunt for lost history. Among the missing: actual lunar rocks brought back from the moon by American astronauts during the Apollo space program - and later stolen from NASA headquarters in a daring heist. 

Discovering the final resting place of Cleopatra is a lifelong passion for many an archaeologist. Now Zahi has permitted some to dive into the Mediterranean Sea and bring up a nine-ton pylon that is a confirmed part of her shrine.

Discover the gripping story of how 12 surprising forces have shaped human civilisation into what we know today. First, the lust for luxury in our lives.

Discover the gripping story of how 12 surprising forces have shaped human civilisation into what we know today. Here, the focus is on the desire to forge weapons.

When Earth gets hit by a deadly solar storm - a massive chunk of the Sun - our planet's electrical system turns into a smoking ruin. How does modern civilisation cope without power?

Homer's The Odyssey is the most famous epic ever written. But could it have actually happened? Astronomical clues and recent geological data now suggest evidence with direct links to the story of Odysseus.

Cities Of The Underworld

Host Don Wildman ducks beneath the jungles of Belize to uncover burial tombs, sacrificial altars, ritualistic caves and the literal entrances to the Mayan underworld.

In 1938, hundreds of mysterious stone disks were found in a cave in China. Some believe the stones are proof of contact with an alien race. Fact or fiction?

For thousands of years, human civilisation has been guided by the words and deeds of ancient prophets, but who were these prophets communicating with?

With Peron toppled from power, Hitler and Bormann could have been forced to flee Argentina. Following leads from declassified files, Bob and John send the teams into Chile and Paraguay to investigate Hitler's whereabouts if he were forced to escape.

Who is really in control? We ride along with a member of a breakaway order of Catholic exorcists, and seek out the origins of hacker group 'Anonymous'. Plus, is the US government creating mind-controlled super-soldiers like Jason Bourne?

This episode features the most dramatic object in the collection – the stunning Knights Templar Sword that Carl and Hamilton believe might have been used at the infamous battle of Acre – the last stand of the Knights Templar in the Holy Land.