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?

As part of their plans for expansion into and domination of the Soviet Union the Nazi hierarchy create the Einsatzgruppe, death squads that are tasked with clearing territory of Jews and Communists for settlement by Germans.

During the Nuremberg Trials former SS officers explain how the Einsatzgruppen procured and employed their gas vans.

After the defeat at Stalingrad Nazi Germany initiates Aktion 1005, an attempt to eliminate evidence of the mass killings perpetrated by the Einsatzgruppen because of concerns about the repercussions once the war was over.

Celebrate Military Mondays on AHC by watching your favorite shows like WWII in Color, Against the Odds, D-Day to Victory, and Air Aces.

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.

As Lance Cpl. Stan Matulis is moving house to house clearing out the Germans in the Falaise pocket during the Battle of Normandy he and his comrades take a break in a home. After passing a window a couple of times he is shot in the neck by a sniper.

As the Germans were withdrawing from Normandy and Belgium many regrouped in Holland and attacked the Allies, inflicting many casualties. As the body count grew so did the letters that had to be written to family members of the deceased.