What would happen if a UFO actually did land on Earth and humans found it? Engineers create a 'spaceship' to see how alien technology could work.

An American symbol lost to the jungle. Concrete monoliths in a European forest. A vast cold war relic. A bizarre structure built to speed trade. Who built them? And why were they abandoned?

Many ancient civilisations foretold of the world's end, but could these be close to the truth? And how close is the end of days?

What is the meaning behind secret messages found throughout Washington? Did America's Founding Fathers know something about ancient aliens that the general public did not?

In this series, renowned underwater archaeologist and adventurer Barry Clifford, along with a crack team of on-land explorers and experts, attempts to solve a mystery that dates back hundreds of years.

The Heinkel He 111 is one of the most recognised German aircraft of WW2.  The broad winged design was a guinea pig for future bombers, with more variants than any other military aircraft of the time.

Power tools are not from the modern world, but are in fact thousands of years old. Most would be lost to time and not again for centuries. How was the ancient world able to create such incredible power tools?

Examine how the leech was used as an ancient medical cure and test one on a live patient to see how much blood comes out.

What would happen if a UFO actually did land on Earth and humans found it? Engineers create a 'spaceship' to see how alien technology could work.

An American symbol lost to the jungle. Concrete monoliths in a European forest. A vast cold war relic. A bizarre structure built to speed trade. Who built them? And why were they abandoned?

Many ancient civilisations foretold of the world's end, but could these be close to the truth? And how close is the end of days?

What is the meaning behind secret messages found throughout Washington? Did America's Founding Fathers know something about ancient aliens that the general public did not?

In this series, renowned underwater archaeologist and adventurer Barry Clifford, along with a crack team of on-land explorers and experts, attempts to solve a mystery that dates back hundreds of years.

The Heinkel He 111 is one of the most recognised German aircraft of WW2.  The broad winged design was a guinea pig for future bombers, with more variants than any other military aircraft of the time.

Power tools are not from the modern world, but are in fact thousands of years old. Most would be lost to time and not again for centuries. How was the ancient world able to create such incredible power tools?

The amazing successes and stunning failures of ancient military engineers have directly affected the weapons and tactics we use today.

Laser weapons and tele-transporters would probably all be fitted to an alien spaceship. But what if they could be used by humans too?

An industrial site lost in a forest. An American installation that waged the Cold War. An abandoned tower. A derelict ruin on a sand dune. Who built them? And why were they abandoned?

New technologies have suddenly revealed thousands of distant planets, opening up the most exciting period in astronomy in decades. Some believe we're on the verge of answering the ancient question: are we alone in the universe?

Why are humans so different from every other species on Earth? Did we evolve from ape or is our intelligence the result of contact with an otherworldly source? Might evidence of alien contact help unlock the mystery of the Creation of Man?

A mysterious rock bearing a cryptic design was discovered in Roswell, New Mexico in 2004. This piece of stone is unusually smooth and seems to possess unusual magnetic properties.

A body inside an over-sized coffin sets the team on the trail of their final mystery. What they discover is a tragic tale played out at the highest echelons of Egyptian society, set at the court of one of Egypt's most famous Pharaohs.

Roman civilisation forged the world as we know it, creating some of the most technologically advanced ancient engineering. Which Top 10 feat of Roman engineering will prove to be the biggest breakthrough?

The amazing successes and stunning failures of ancient military engineers have directly affected the weapons and tactics we use today.

Laser weapons and tele-transporters would probably all be fitted to an alien spaceship. But what if they could be used by humans too?

An industrial site lost in a forest. An American installation that waged the Cold War. An abandoned tower. A derelict ruin on a sand dune. Who built them? And why were they abandoned?

New technologies have suddenly revealed thousands of distant planets, opening up the most exciting period in astronomy in decades. Some believe we're on the verge of answering the ancient question: are we alone in the universe?

Why are humans so different from every other species on Earth? Did we evolve from ape or is our intelligence the result of contact with an otherworldly source? Might evidence of alien contact help unlock the mystery of the Creation of Man?

A mysterious rock bearing a cryptic design was discovered in Roswell, New Mexico in 2004. This piece of stone is unusually smooth and seems to possess unusual magnetic properties.

A body inside an over-sized coffin sets the team on the trail of their final mystery. What they discover is a tragic tale played out at the highest echelons of Egyptian society, set at the court of one of Egypt's most famous Pharaohs.

Roman civilisation forged the world as we know it, creating some of the most technologically advanced ancient engineering. Which Top 10 feat of Roman engineering will prove to be the biggest breakthrough?

The amazing successes and stunning failures of ancient military engineers have directly affected the weapons and tactics we use today.