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Lost Cities Part 2: Hidden History

The modern understanding of human history is a work in progress, and new discoveries regularly redefine, enrich and - at times - contradict society's existing interpretation. But could world powers really suppress information about lost cities?

Stuff They Don't Want You To Know: Sounds and Silence: Weaponized Noise

Could the world's militaries really build lethal sonic weapons? Could infrasound really destroy a human being? How far away are we from the space-age sonic weapons of science fiction? Join Ben and Matt as they explore these questions.

Stuff They Don't Want You To Know: The Vatican's Secret Archives - CLASSIC

For decades before the publication of Dan Brown's novels, conspiracy theorists were convinced that the Catholic Church held numerous Earth-shaking revelations within its secret archives. But what's really in there?

Stuff They Don't Want You To Know: The Mafia: Modern Scandals

While questions about the origins of Italian crime families may linger, there's little doubt about their influence today. Tune in to learn more about Italy's organized crime families and their associates, from the Vatican to secretive Masonic lodges.

Stuff They Don't Want You To Know: The Mafia: Fact and Fiction

For millions of people, the word 'mafia' conjures images of "The Godfather" and "The Sopranos". But what is 'the Mafia', exactly? Where does the term come from, and how has the definition changed over time?

Stuff They Don't Want You To Know: Who Killed Tupac?

After Tupac Shakur's death, speculation about his murderer, his body and even his actual death ran rampant. So, who did kill Tupac or did he even die? Hear the facts for yourself.

Stuff They Don't Want You To Know: Mermaids: Tales and Legends - Cryptids

In the modern age, tales of mermaids fall under the same category as stories of minotaurs or dragons. If that's the case, then why have sailors across centuries reported seeing humanoid, aquatic creatures on the waves?

Stuff They Don't Want You To Know: Cryptids: Mothman - CLASSIC

Between 1966 and 1967, witnesses across Point Pleasant reported a rash of paranormal activity, leading up to the largest bridge collapse in US history. But what actually happened -- and what on Earth is the Mothman? Tune in and learn more.

Stuff They Don't Want You To Know: Income Taxes - CLASSIC

It's no secret that income tax can be an unpopular subject, and most people think the tax code is far from perfect. But why do some people believe income tax itself is illegal? Tune in to learn more about protestors and income tax conspiracy theory.

Stuff They Don't Want You To Know: Constitutional Conspiracies 201

The balance between freedom and security sways precariously in the best of times, and in a world consumed with the idea of never-ending terrorism, the United States has curtailed some of their citizen's rights. But how exactly? And is this legal?

Stuff They Don't Want You To Know: Constitutional Conspiracies 101

The Constitution is one of the most important documents in the history of United States, and it's also the subject of numerous fringe theories, allegations, rumors and dirty secrets. But what are they, exactly?

Stuff They Don't Want You To Know: Ghosts: The Evidence

People have always been preoccupied with what happens to us after we die, leading some to believe in the existence of ghosts. But is there any real, conclusive evidence that these supernatural beings exist? Tune in to find out.

Stuff They Don't Want You To Know: Ghosts, Part 2: The Hunt

Ghost-hunting has recently enjoyed a resurgence in modern pop culture, but the practice of attempting to communicate with the dead dates back into antiquity. Tune in to learn about the controversy surrounding ghost hunting and the science of spirits.

Stuff They Don't Want You To Know: Ghosts, Part I: The Law

While there's no accepted proof that ghosts exist, that hasn't stopped courts from entertaining their purported testimony. Tune in to learn more about the strange cases that have almost - or actually - depended on the statements of a ghost.

Stuff They Don't Want You To Know: Are plants intelligent? - CLASSIC

We've all heard stories of plants responding to positive attention from humans, and botanists have discovered amazing behavior in some plant species -- but what could it mean? Tune in to learn why some people believe plants may be intelligent.

Stuff They Don't Want You To Know: What Makes a Person? Part Two: Nonhuman Personhood

The term 'nonhuman personhood' might sound paradoxical, but groups of scientists, activists and ethicists are campaigning to give cetaceans, primates and elephants the right to legal personhood. So what's the argument against this?

Stuff They Don't Want You To Know: What Makes a Person? - Part One: Corporations

The controversial decision of the U.S. Supreme Court in the Citizen's United case introduced many people to the concept of 'corporate personhood' for the first time. So what exactly is it? Tune in to learn more.

Stuff They Don't Want You To Know: The Illuminati: The Music Industry

This episode examines the alleged links between music and the Illuminati, especially in modern music. Tune in to learn why some people believe today's most popular artists are members of a secret society bent on subverting the will of music-lovers.

Stuff They Don't Want You To Know: The Illuminati: Part III

While skeptics believe the Illuminati disbanded in the 18th century, conspiracy theorists think the organization still exists -- and has nearly accomplished its ancient goals. But what, exactly, are these goals?

Stuff They Don't Want You To Know: The Illuminati: Part II

While mainstream historians agree that the Bavarian Illuminati was founded by Adam Weishaupt in the 18th century, conspiracy theorists think the group is much older. Tune in to hear some of the most bizarre theories about the Illuminati's history.