Sky History 2 Tuesday

Researchers claim hidden messages can be found within the works of Leonardo da Vinci and other artists that may reveal an extraterrestrial influence

Investigations into the possibility that extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

A visit Rathlin Island to off the coast of Co Antrim, to explore a Neolithic stone tool factory, a unique upside-down lighthouse, and a Second World War shipwreck

How the church of Hagia Sophia in Istanbul, rebuilt by the Roman Emperor Justinian, has survived 1,500 years of turbulent history

TV personality Bobby Berk stops by the shop to challenge the artists to create glass art centrepieces for a dining room table

The remaining competitors are tasked to design a perfume bottle with a sculpted stopper and render it in two sizes

Researchers claim hidden messages can be found within the works of Leonardo da Vinci and other artists that may reveal an extraterrestrial influence

Investigations into the possibility that extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

A tour along England's south coast, diving with sharks, exploring the battlements of Drake's Island, uncovering the origins of Scouts and discovering fossils on the Isle of Wight

A look at Le Louvre, the world's largest art museum, located in Paris, and the home of Leonardo da Vinci's celebrated portrait, the Mona Lisa

The Republic P-47 Thunderbolt, a Second World War-era fighter aircraft produced by the American company Republic Aviation from 1941 until 1945

Tthe disappearance of Frederick Valentich and his Cessna over the treacherous Bass Strait. His last transmission gave a disturbing account of what the young pilot experienced

From the time of the Knights Templar to prehistoric Spain, uncover the origins of the curses surrounding the Turin Shroud, the Cave of Altamira and other artifacts

How the race to develop the first atomic bomb was seen as critical to secure world dominance

Documentary exploring a prehistoric ghost in Ireland, a machine that can see back in time, and a giant pentagram in the Canadian snow

Silent, hovering triangular objects seen by thousands of people in a more than two-year 'wave' over Belgium, beginning in late 1989

As one of their most controversial scientists, Walter Heisenberg was key in the Nazis' efforts to build an atomic bomb. How close was he to achieving his goal?

A look at UFO sightings, terrifying abductions and other bizarre occurrences, casting new light on historic cases

Three of the most extravagant and expensive weddings in history are profiled. Lavish and luxurious was the only way to celebrate for these big spenders

The ancients who bankrolled the construction of massive churches and temples in a desperate attempt to buy their way into Heaven

Researchers claim hidden messages can be found within the works of Leonardo da Vinci and other artists that may reveal an extraterrestrial influence

Investigations into the possibility that extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

As one of their most controversial scientists, Walter Heisenberg was key in the Nazis' efforts to build an atomic bomb. How close was he to achieving his goal?

The Republic P-47 Thunderbolt, a Second World War-era fighter aircraft produced by the American company Republic Aviation from 1941 until 1945

Tthe disappearance of Frederick Valentich and his Cessna over the treacherous Bass Strait. His last transmission gave a disturbing account of what the young pilot experienced

From the time of the Knights Templar to prehistoric Spain, uncover the origins of the curses surrounding the Turin Shroud, the Cave of Altamira and other artifacts

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