In southwestern Poland the Nazis built a series of underground production and testing facilities that allowed them to experiment with and develop highly secretive and advanced flying machines.

It's not just the possession of a host by a demon that warrants an exorcism.

It is claimed that Mary Magdalene's skull is kept in the St. Maximin Basilica in southern France.

Englishman Jamie Theakston goes to Wales to see the supposed Holy Grail, and grills its possessor about its history and supposed supernatural ability.

Vampires have long been a part of our imaginations and history, but some, like this unique couple from England, claim to practice today.

To this day mystery surrounds the circumstances of Italian Fascist Dictator Benito Mussolini's death. Was he killed by Italian partisans? British special operatives? On the orders of Hitler?

Was the Third Secret of Fatima suppressed by the Vatican because it revealed an approaching apocalypse?

Tony Nadal recounts leading an assault at LZ X-Ray during the Battle of Ia Drang and having to call in smoke to help conceal his company's movements because they were so exposed.

Gary Villalobos describes having to conduct sweeps and raids in insurgent-held Tal Afar and the perilous nature of having to cover buildings and alleys with little to no armored protection.

Situated in northwestern Iraq, Tal Afar had become a hotbed of unrest and insurgent activity by the time US and Iraqi forces launched an offensive to fight the insurgents while trying to win the hearts and minds of the residents of Tal Afar.

Philip Hollywood, a USN sailor aboard the destroyer the USS Melvin recounts the beginning of the massive naval battle against the Japanese at Surigao Strait.

As part of the Battle of Leyte Gulf, US Navy ships at Surigao Strait were situated in an ideal position whereby they could deliver punishing broadsides at Japanese ships which could only fire their bow guns.

Battlefield conditions in Vietnam were unique and challenging so the US approached warfare there differently by its heavy use of the air cavalry and by implementing a strategy of search and destroy.

Veterans and footage from the invasion of Normandy provide the details as to just how treacherous the initial landings and fierce the German defenses were their with underwater mines, 88-milimeter artillery rounds and machine gun emplacements.

Private Hal Baumgarten and his fellow GIs are victims of a deadly German ambush as they advance inland from the beach at Normandy. As he is about to be evacuated a sniper hits him, then gets "exterminated" by an unexpected friend.

A formidable German defense in Caen forces the Allies to unleash a massive aerial bombardment on the key city, with both the enemy and allies forced to seek cover.