Sky History 2 Sunday

Investigations into whether ancient tales of beings with super-human powers could be inspired by extra- terrestrials who came to Earth in the past

Investigations into inventor Nikola Tesla's claims of communication with extraterrestrials on other planets and whether the scientist could have been a human 'receiver'

Theorists investigate how ancient aliens may have helped to guide and define mankind in the remote past

The defeat at Stalingrad in 1943, which was the turning point of the Second World War and convinced the Nazi leadership to intensify their terror and propaganda campaigns

The survivors and the winners of the Second World War wanted to blame the Germans. At the time, no one knew whether the Germans had really broken with the Nazis

A Messerschmidt 'Gigant', the biggest aircraft to fly in the Second World War. Its wreckage was discovered by Italian divers in January 2012

Startling mysteries captured by satellites orbiting the Earth, here featuring the man-eating mountain - a black scar in a remote Australian forest revered by Aboriginal tribes

Satellite images capture thousands of straight lines, covering thousands of square miles, etched out of the Bolivian desert over thousands of years

Embark on an eye-opening journey as experts investigate the startling mysteries captured by satellites orbiting the Earth - from hidden worlds to unexplainable natural phenomena

Investigations into whether ancient tales of beings with super-human powers could be inspired by extra- terrestrials who came to Earth in the past

Investigations into inventor Nikola Tesla's claims of communication with extraterrestrials on other planets and whether the scientist could have been a human 'receiver'

The stories of some of history's most notable leaders, from Sir Winston Churchill to Fidel Castro and Nelson Mandela

Part two of two. Documentary exploring the rivalry between the leaders of Britain and Germany during the Second World War, and their common experiences during the First World War

Theorists investigate how ancient aliens may have helped to guide and define mankind in the remote past

Professional salvage diver Tony Sampson and his team dive in search of SS Clare Lilley, which rests off Portuguese Cove, Nova Scotia

The infamous Borgia family was devastated when favourite son Juan was murdered in 1497. Here, modern experts try to identify the killer

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

Investigations into whether ancient tales of beings with super-human powers could be inspired by extra- terrestrials who came to Earth in the past

Investigations into inventor Nikola Tesla's claims of communication with extraterrestrials on other planets and whether the scientist could have been a human 'receiver'

Theorists investigate how ancient aliens may have helped to guide and define mankind in the remote past

Part two of two. Documentary exploring the rivalry between the leaders of Britain and Germany during the Second World War, and their common experiences during the First World War

Investigating the likelihood that 1347's plague - the worst pandemic in European history, and which killed almost one third of the continent's population - could be repeated

A look at the creation of the super marine Spitfire, an amazing feat of engineering that became one of the most famous fighter aircrafts in the Battle of Britain