Don investigates a life-threatening aviation adventure, a medical mystery with a creepy cure and an incredible race to the stars.

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Don examines a hero horse who risked her life, a culinary mystery about a popular salad dressing and an Olympic runner's battle with polio.

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Don examines an enigmatic oar used in an unreal World War II deception, a gold nugget that helped set off the gold rush and a fossil belonging to one of history's strangest creatures.

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Don examines a novel supposedly written by the ghost of a legendary author, a painting that isn't quite what it seems and a replica of the plane that flew in the first commercial airline flight.

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Don examines a patriotic pig that helped fund World War II, a man's trek to rescue his crew during an brutal Arctic expedition and two activists who risked their lives to take down a superpower and save the whales.

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Don examines a boulder covered in strange carvings that could turn American history on its head, a sword belonging to an explorer accused of treason and the marble bust of a great leader who tried to untangle an ancient puzzle.

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Don examines a war-time surgery that was truly life or death, a magician that challenged the legendary Harry Houdini and a race to discover wireless communication that lead to a slimy invention.

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Don examines an enigmatic canoe which unlocked the origins of a lost civilization, a miracle drug used by a Civil War hero in his last battle and a bust involved in a supernatural game of chess.

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Don examines the chilling stories behind an eccentric motorized expedition to the North Pole, a frozen feat of nautical engineering during World War II and a carnival creature in an ice block.

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Don examines a statue created by the world's best-known art forger, a mysterious cache of buried gold coins and a woman whose sales technique made Tupperware a household name.

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