The Vatican Library contains a vast wealth of documents and relics that have not been fully explored, and which are hard to get access to from the outside.

Insights into who was the man in the iron mask, and how could this person's identity be a threat to the most powerful person in France, King Louis XVI

For their spies weapon makers of the Eastern Bloc came up with some novel and ingenious arms with which to eliminate their enemies, like the Spetsnaz gun/dagger.

While in Colorado Nikola Tesla conducted high-voltage, high-frequency experiments, with the aim of being able to transmit electricity wirelessly. His experiments literally electrified parts of Colorado Springs.

While there is much evidence to dispel the classic tale of King Arthur and his court there is plausible evidence about someone like him and the existence of a place like Camelot.

Much research has been done around the treasures the Templars discovered in the Holy Land, but they are not limited to material possessions.

Based on declassified materials and documentation it appears that Nazi scientists were using radioactive materials in order to enable their flying discs to achieve vertical lift-off.

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.