Sky History 2 HD Wednesday

Documentary contemplating the notion that extraterrestrials have been influencing US presidents

Massive megalithic structures and reported discoveries of towering human-like skeletons, contemplating whether they reveal that the world was once inhabited by giants

The family of Stephen Lawrence reflect on his murder in 1993, as well as their lengthy fight for justice, speaking to mark the 20th anniversary of his death

The evolution of amphibious assault crafts, including the restoration and story of Britain's last surviving LCT 7074 landing craft, designed to carry six Churchill tanks

The background and development of one of the Second World War's most iconic bombers. The Boeing B17, aka the Flying Fortress, served with both the USAAF and the RAF

Documentary contemplating the notion that extraterrestrials have been influencing US presidents

Massive megalithic structures and reported discoveries of towering human-like skeletons, contemplating whether they reveal that the world was once inhabited by giants

Across the world, there are stories of treasures that have been lost for centuries. This programme considers that these ancient relics have been hidden by extraterrestrials

Experts question what probes on Mars may have found over the past 40 years, asking if Nasa could be hiding proof of life on the Red Planet from the public

Investigating whether spiritual leaders known as shamans, who have healed and protected people throughout history really have contact with extraterrestrial realms

Investigations into the possibility that insects have descended from, and could have links to, extraterrestrials which landed on Earth thousands of years ago

Theorists ask whether a currently unidentified species represented in human DNA could be a result of breeding between man and alien in the distant past

A new and shocking theory could explain one of America's most famous unsolved crimes - the disappearance of aviator Charles Lindbergh's 20-month-old son

Experts revisit the events of May 2013 when soldier Lee Rigby was murdered by two Islamic extremists close to his barracks in Woolwich, south-east London

Part two of two. On the orders of Hitler, more than 5,000 slave labourers were shipped to Alderney to build a series of fortifications designed to protect the island from attack

The mystery that lies in vast and unexplored places - from the undiscovered location of Atlantis to the unknown properties of the Bermuda triangle

A look at the Battle of Actium in 31 BC, a decisive naval engagement that pitted the forces of Octavian against those of Mark Antony and Cleopatra

Documentary contemplating the notion that extraterrestrials have been influencing US presidents

Massive megalithic structures and reported discoveries of towering human-like skeletons, contemplating whether they reveal that the world was once inhabited by giants

Experts revisit the events of May 2013 when soldier Lee Rigby was murdered by two Islamic extremists close to his barracks in Woolwich, south-east London

Investigations into whether the religious relic the Ark of the Covenant could hold connections to an extraterrestrial past

Investigating whether hilltop spirits, which some through time have believed to inhabit mountains, could have been extraterrestrials

Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World, which could suggest there is more to the US's past than written in the history books

Avery struggles to finish the Manta in time for it to be painted, and Connor ties the knot in Rust Valley's biggest event of the year

The suggestion that that advanced - and perhaps even extraterrestrial - civilisations existed on Earth thousands of years before the present one