The U.S. Bullion Depository, better known as Fort Knox, is the home of the United States Army and one of the world's most top secret fortresses. Hidden deep inside the vault is an estimated $73 billion dollars in gold. Almost all information about it is classified. Through interviews with eyewitnesses, rare photos, and rarely seen films, we will construct a picture of what the building might look like. Hear testimony of those journalists and congressmen who were among the select few invited inside in 1974. Discover the history and secrets behind the Army's tank warfare and the classified military technologies it will use to fight the wars of the future.

Takes an inside look at the secret protocols, hidden history, and public scandals of America's highest office.

Every day, ordinary Americans are lured away from their normal lives by cults, drugs, and criminal organizations. But what causes a person to make such a radical change, even going so far as commit acts of terrorism... or take part in a mass suicide?

On September 11, 2001, Americans' sense of security was severely shaken. But just what are the most dangerous threats to the United States of America, both foreign and domestic?

What do the paintings of Lascaux, France reveal about our prehistoric past?

Shroud of Turin, "magic" helping defeat the Germans, and Lewis and Clark.