Season 2

From a bat swung by one of baseball's boldest pioneers, to an iconic painting hidden behind a false wall, these astonishing finds prove that America's greatest treasures can turn up in the most unlikely places.

From WWII bombs pulled from the sea and Nazi bunkers buried in sand, to chemical weapons hidden beneath Washington, D.C., these explosive discoveries prove that history's blasts from the past can still shake our world today.

Some secrets refuse to stay buried. Whether it's illicit cargo in a frozen lake, a stolen masterpiece worth millions, or a brothel hidden in the shadow of the Capitol—the truth always resurfaces.

From a legendary city swallowed by the jungle, to an underground metropolis stretching 18 levels deep, and even a forgotten pyramid from a lost civilization, sometimes the biggest mysteries on Earth are closer than we think.

A forgotten manuscript in a dusty trunk. A priceless painting discovered in plain sight. A royal tomb hidden for millennia beneath the sands. These famous finds prove history's greatest treasures often resurface when least expected.

Forget the monsters under your bed. The real ones, from dinosaurs to mythic beasts, are out there just waiting to be unearthed.

Secrets of popes, rewritten laws, and cities lost to the waves — these divine discoveries shake our beliefs and uncover mysteries of truly epic proportions.

From a long-lost keepsake tied to the world's most famous astronaut, to a giant flying reptile that once ruled the skies, and even a previously unknown planet orbiting two suns…some extraordinary discoveries remind us to keep looking up.

The world's greatest fortunes often surface in the most unlikely places. From a Fabergé egg found at a humble flea market, to rare baseball cards hidden inside an old piano.

Beneath the earth, frozen in the tundra, and hidden in the depths of the sea, lie some of the deadliest discoveries of all time.

Riddles don’t just live in books, they’re all around us. From a hollow nickel hiding Cold War secrets, to an ancient chess piece, these puzzling finds remind us that history likes to keep us guessing.

Gold that ruins lives, a cursed wreck beneath the sea, and a hidden safe linked to a famous burglar, show how the past can be as dangerous as it is tempting.

From James Bond’s legendary submarine car uncovered in a storage unit, to a rock-and-roll guitar with a past as loud as its sound, and locomotives resting on the ocean floor, these heavy-metal marvels prove history’s strongest secrets can’t stay buried.

A species thought lost forever is spotted again. A dog plays an unexpected role in recovering the World Cup trophy. And a puppy from the Ice Age emerges intact after 18,000 years. These stories reveal just how unpredictable the natural world can be.

From a live WWII bomb discovered decades later to a Civil War cigar hiding secret orders to a Viking sword unearthed by a child. These finds reveal how the remnants of war can resurface when least expected.

From Mussolini's hidden bunker to a warship built to dominate and coins bearing Henry VIII's authority. These discoveries reveal how power leaves its mark long after its rulers are gone.

History’s biggest discoveries aren’t always its best. A diamond heist that unravels in a ditch, a colossal burning crater dubbed the “Gateway to Hell” and an island dominated by venomous vipers prove that when finds go big, they can also go very bad.

From a hidden cache of bones to an ancient tomb shrouded in mystery and even a rare sports car dug up in a backyard. These eerie revelations prove that some secrets refuse to stay buried.

Some discoveries defy explanation, like fossilized vomit from the Jurassic era, a sewer blob with a pulse, even a long-lost toy discovered inside a man's lung. These freaky finds prove that reality can be stranger-and far creepier-than fiction.

From a $4 flea market frame concealing the Declaration of Independence, or a lost Fabergé egg in a Midwest flea market and even the holy grail of comic books hiding in someone's wall, we revisit the most astonishing, valuable discoveries.