Sky History 2 Tuesday

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

Suggestions of cover-ups over the fact extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

With the Allies at crisis point in 1943, pressure mounted on the Wrens to prove their worth and the stage was set for a battle that would turn the tide of the Atlantic war

The design, service and loss of some of the world's greatest ocean liners. The Normandie was set alight while being converted for wartime use as a troopship

The German attack on Warsaw in September 1939. Withing a week, much of the Polish capital was in ruins

This series has followed investigators visiting the sites where unexplained incidents have been reported. Giorgio Tsoukalos looks back at the most extraordinary encounters

Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being

In Weedon Bec, Northamptonshire, Suggs and Stephen Taylor unearth a wealth of Second World War relics, and explpre the very secret past of a huge, top-secret, arms supply depot

Dan Jones explores the history of Dover Castle, revealing that Henry II ordered its construction partly out of guilt for the murder of Thomas Becket

Alice Roberts explores the Second World War history of Dover, visiting the base where the Dunkirk evacuation was planned and getting a taste of the Battle of Britain

The rise and fall of the great Christian empires of Byzantium, the Crusaders and the Venetians through 10 sites, including St Mark's Basilica in Venice

The Queen Elizabeth, which came to an undignified end in Hong Kong Harbour after catching fire while undergoing refurbishment

Ted and Nick hit a 1960s bungalow in a celebrity neighbourhood and strike gold with a one-of-a-kind prospecting machine

Garth Barnard investigates the Turweston Wellington Collision of July 8, 1944, when two bombers collided killing 13 soldiers, before the war for them had even begun

The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain as the remorseless development of weapons and bombers

With reference to events in Afghanistan, this programme contemplates whether the US should be blamed for the rise of Islamic terrorism

A case in which a security officer was knocked unconscious by an unearthly presence at a nuclear launch site in South Dakota. On awakening, he had travelled miles from the site

Few know that one of the US's most mysterious National Parks is in Puerto Rico - a place some believe is home to a creature known as the Chucabara

Many believe Gettysburg National Military Park is haunted by its violent past. This documentary explores some incredible claims about the park's history

This series has followed investigators visiting the sites where unexplained incidents have been reported. Giorgio Tsoukalos looks back at the most extraordinary encounters

Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being

Ted and Nick hit a 1960s bungalow in a celebrity neighbourhood and strike gold with a one-of-a-kind prospecting machine

Terry Schappert explores the guerrilla tactics used by the Alamo Scouts, an elite unit that led a PoW rescue during the Second World War, and tests the weapons they used

The rise and fall of the great Christian empires of Byzantium, the Crusaders and the Venetians through 10 sites, including St Mark's Basilica in Venice

Alice Roberts explores the Second World War history of Dover, visiting the base where the Dunkirk evacuation was planned and getting a taste of the Battle of Britain

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