A team searches for feral dogs to uncover where they live and determine how dangerous they are in the wake of reports of predatory packs of canines attacking people.

Without the moon, the earth would be a very different and desolate place today: four hours of sunlight with pitch-black nights, steady 100mph winds spawning giant hurricanes lasting for months, and virtually no complex life forms, much less humans.

During World War II, rumours spread that an aircraft had been built from extraterrestrial blueprints. Were aliens helping Hitler's quest for world domination?

The discovery of the Marianas trench was one of the first puzzle pieces that lead to the understanding of the most massive process that shapes the geology of the Earth.

Ross completes his specialist SCUBA training under the expert tutelage of dive Supervisor Neil Brock, and inspired by the stories of his shipwrecked relatives, he heads up to the Royal Navy’s historic naval base in the far northerly Orkney Islands.

The team investigates Nikola Tesla's final residence, The New Yorker Hotel, and find incredible evidence that it served as much more than a home to the controversial inventor.

In this episode we reconstruct the grand hypostyle hall at Karnak; explore the technical innovation and engineering skill that produced the temple at Abu Simbel and rebuild the Ramesseum as he would have seen it.

A team searches for feral dogs to uncover where they live and determine how dangerous they are in the wake of reports of predatory packs of canines attacking people.

Without the moon, the earth would be a very different and desolate place today: four hours of sunlight with pitch-black nights, steady 100mph winds spawning giant hurricanes lasting for months, and virtually no complex life forms, much less humans.

During World War II, rumours spread that an aircraft had been built from extraterrestrial blueprints. Were aliens helping Hitler's quest for world domination?

The discovery of the Marianas trench was one of the first puzzle pieces that lead to the understanding of the most massive process that shapes the geology of the Earth.

Ross completes his specialist SCUBA training under the expert tutelage of dive Supervisor Neil Brock, and inspired by the stories of his shipwrecked relatives, he heads up to the Royal Navy’s historic naval base in the far northerly Orkney Islands.

The team investigates Nikola Tesla's final residence, The New Yorker Hotel, and find incredible evidence that it served as much more than a home to the controversial inventor.

In this episode we reconstruct the grand hypostyle hall at Karnak; explore the technical innovation and engineering skill that produced the temple at Abu Simbel and rebuild the Ramesseum as he would have seen it.

A team searches for feral dogs to uncover where they live and determine how dangerous they are in the wake of reports of predatory packs of canines attacking people.

Without the moon, the earth would be a very different and desolate place today: four hours of sunlight with pitch-black nights, steady 100mph winds spawning giant hurricanes lasting for months, and virtually no complex life forms, much less humans.

During World War II, rumours spread that an aircraft had been built from extraterrestrial blueprints. Were aliens helping Hitler's quest for world domination?

The discovery of the Marianas trench was one of the first puzzle pieces that lead to the understanding of the most massive process that shapes the geology of the Earth.

Ross completes his specialist SCUBA training under the expert tutelage of dive Supervisor Neil Brock, and inspired by the stories of his shipwrecked relatives, he heads up to the Royal Navy’s historic naval base in the far northerly Orkney Islands.

The team investigates Nikola Tesla's final residence, The New Yorker Hotel, and find incredible evidence that it served as much more than a home to the controversial inventor.

Throughout history the same builders and engineers that paved man's path out of the caves also caused some of mankind's worst disasters. Often a huge calamity is traced back to a tiny cause, insignificant in itself, but triggering a domino effect.

How do some people live through the impossible, whether it's plane crashes, bearing freezing temperatures, or performing superhuman feats while in danger?

The manhunt for Adolf Hitler finds investigators deep in the Canary Islands, where secret tunnels and a massive German compound may have supplied everything from weapons to a medical facility along Hitler's potential journey to South America.

UFO Files

While the Bermuda Triangle is a well-known area of strange phenomenon in the Atlantic, there is another, more treacherous triangle in the Pacific off the coast of Japan known as the "Dragon's Triangle".

Lost Relics of the Knights Templar

Nazi loot. Roman coins. Viking artefacts. Spanish gold. These are just some of the priceless treasures that regularly pass through the hands of the world�s most prolific yet completely unknown treasure hunters, Hamilton White and Carl Cookson.

New York City's Time Warner Center is the state of the art in high-rise living. It features all the amenities that one can imagine. But high-rise, high-density living isn't a new idea.

Warriors

In 1565, the Knights of Saint John defended Malta from the attacking Ottomans. Terry Schappert reveals what it was like to be a warrior in one history's greatest sieges.