Sky History 2 HD Wednesday

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena

Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code

Actor Laurence Fishburne looks into new evidence that might reveal more about how and why the Titanic sank

Veteran actor William Shatner considers whether unlocking the ancient mysteries of the Sun can be the difference between life and death for human civilization

How, if humanity ceased to exist, homes from suburban mansions and Miami condos to rural farmhouses would face a relentless siege by fire, flood, wildlife and time

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena

Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code

The top 10 alien disasters - from a flying monster at a nuclear incident, a meteor that wiped out the dinosaurs and a deadly virus

Ten intriguing symbols and codes found across the globe that might contain proof of otherworldly contact

How Scotland is an epicentre of otherworldly phenomena, home to mysterious ancient stone circles, stories of strange beings and is a major hotspot for UFO sightings

The top 10 locations around the world that just might be hiding alien bases, including a cavern beneath the ice of Antarctica

Ancient astronaut theorist Giorgio Tsoukalos selects his top 10 extraordinary creatures

Something is drawing ravenous wild hogs to an ancient cemetery, luring Troy and his team to unearth graves that date back over 200 years

Documentary exploring theories regarding supposed extraterrestrial visits to ancient civilizations, focusing on the mysterious carved blocks of the Inca ruin of Puma Punku

Significant victories against the Germans in the latter stages of the war, including the lifting of the siege of Leningrad after 900 days and the Battle of Normandy

Eva Braun is Adolf Hitler's most famous girlfriend - but she was not his first. Many lovers died in mysterious circumstances - and conspiracy theories abound

How the Barbarian tribes brought about the Empire's downfall, and the death of Emperor Orestes at the hands of mercenary soldiers

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena

Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code

Documentary exploring theories regarding supposed extraterrestrial visits to ancient civilizations, focusing on the mysterious carved blocks of the Inca ruin of Puma Punku

The top 10 alien disasters - from a flying monster at a nuclear incident, a meteor that wiped out the dinosaurs and a deadly virus

Ten intriguing symbols and codes found across the globe that might contain proof of otherworldly contact

The top 10 scariest extraterrestrial encounters, from an instance in rural Texas that left onlookers with unexplainable injuries to mysterious cattle mutilations

The top 10 locations around the world that just might be hiding alien bases, including a cavern beneath the ice of Antarctica

A look at whether or not Area 51's notoriety acts as a cover-up to much bigger, top-secret extraterrestrial experiments taking place at multiple locations