Monkey glands for immortality, hypnotized assassins, and a brain-linked cyborg couple. We investigate some of the strangest experiments on record. From two-headed dogs and testicle transplants…These are the bizarre but real experiments that boggle the mind. Prepare to be astounded–and a little grossed out.

Human bones as a "miracle cure" for gout; living mummies buried alive; a truly bizarre Victorian way to lose weight -- with tapeworms; from daily rites to once-in-a-lifetime rituals, the stranger side of human nature is revealed in these rituals.

Shipwrecks, plane crashes, disappearances, and UFO sightings, oh my! This episode explores the Lake Michigan Triangle and many other wild and weird places, including a creepy doll-filled island with a dark past, deadly gas-filled explosive lakes, caves that harbor deadly viruses, and the most haunted place in the U.S.

From a headless chicken that lives over one year, to an out-of-this-world "celestial body" where it rains molten glass...We explore the most astonishing bodies through these truly unbelievable stories. Here are the true tales of not only the tallest human ever measured, but also the shortest person on record. What about the man who survived an iron bar through his head, or a Medusa-like body of water that turns its victims to stone? Brace yourself for the extraordinary.

Imagine a man floating through the sky by dozens of balloons, all attached to a single lawn chair. Or, a circus conducted by a team of performers only visible via magnifying glass. How about a cycling grandpa that proves to be no match for his youthful counterparts? These are the tales of history's most unbelievable, strange and completely unexpected spectacles.

Many say it's not about the destination, but the journey that gets you there. From a dog's space voyage, to a harrowing story of Arctic survival and various trips through time... These are the journeys that are so extraordinary, they are truly unbelievable.

In Boston, a 25-foot tidal wave of…Molasses? A dancing plague that kills 100 people? A surgery with a 300% mortality rate? We search the globe for the strangest and most bizarre deaths on record. If the 1814 London Beer Flood doesn’t kill you, maybe a mysterious case of spontaneous human combustion will.

Did you ever wonder what it would be like to get attacked by a million bats with tiny bombs strapped to their chests? What about inflatable tanks, robot assassins, bazooka Vespas, war dolphins...The list of outrageous weapons goes on! These weapons, and others, pushed the boundaries of "possible" in the weirdest ways ever.

Would you believe that the beginnings of modern endoscopy were really all thanks to one professional sword-swallower? Or that lack of sleep could have some strange upsides? What about drinking vomit in the name of science? These are the stories of the most bizarre, unthinkable and outrageous experiments in history.

Picture this: a full-body gas mask for babies. How about Smell-o-Vision? Or a robot powered by eating slugs? These are all real inventions, and we’ve got them covered–including inflatable airplanes, hidden cameras in your contact lenses, and coffin security systems to protect you in the afterlife.

One-of-a-kind crimes are often met with one-of-a-kind punishments. Like a pig whose bloody rampage lands itself in the courtroom, or a music enthusiast whose wall-rattling beats subject them to hours of classical symphonies and a drunkard whose public intoxication turns them into public entertainment. These peculiar punishments all prove to have one thing in common... they are completely unbelievable.

Did you know beards can be deadly? Or that a lawnmower once killed a spectator at a football game? What if I told you someone died from drinking too much water? These are just some of the wild and crazy deaths... that are truly unbelievable.

Some of history's most brilliant innovations are also the most bizarre. Like a fully functioning car that hovers in midair, or clothing made out of everyone's favorite source of calcium. How about a robot dog that breathes fire? These are the tales of history's most bizarre inventions.

We've heard the tales of great wars fought with groundbreaking weaponry, but what about everything else in between? From missiles manned by pigeons, or a helmet outfitted with firearms, to an incendiary device made to look like one of America's favorite pastimes. These are the stories of unconventional weapons; each more unbelievable than the next.

This episode explores the strangest and most ghastly gigs ever. From night soil men cleaning excrement off the streets of Victorian London, professional mourners hired to weep at funerals, to the intrepid deer urine collectors. These are the most unbelievable jobs in history.

Some of the world's most valiant figures overcome the most treacherous, impossible and downright bizarre circumstances. Like a man who survives the apocalypse, or a woman involved in not one, but three maritime disasters. And a cat that proves to be unsinkable in battle. These are the stories of survival, success and reunion... against all odds.

From riding massive tree trunks down a treacherous slope, to hosting a barrage of monkeys for an all-you-can-eat buffet, to a food fight of epic proportions; these are the stories of history's most bizarre and extraordinary traditions.

A blind man who uses bat-like powers of echolocation to navigate his surroundings? A samurai with reflexes faster than a speeding bullet? A man who’s immune to electrocution? These are the strange tales of humans with superhuman powers, including the man who’s a human lightening rod.

Have you ever wondered about the most bizarre things that have fallen from the sky? From meteorites to seafood, and even bathtubs, these are some truly unbelievable stories of what comes from above. Don’t believe it? Just look up!

Have you heard about the warrior bear who helped the allies win WWII? Or how about the real-life hobbit humans in ancient Indonesia? What if I told you gerbils were recruited to fight crime in Canadian jails? This episode explores the unbelievable stories of the planet's most fantastic beings.

From calling Veteran's Stadium home, to setting up camp in an airport terminal, to turning an unassuming dumpster into a luxurious abode, each of these dwellings are so beyond odd, that they are truly unbelievable.

Imagine a city where the commute requires a zipline, or a town crawling with some strange monkeys and even a spot that holds a beautiful waterfall that spews blood. Get your passports ready, as we take a tour of the most unusual places in history.

History is riddled with brilliant, life-changing discoveries... From gold, to lost treasures, to scientific findings. But, some discoveries are anything but ordinary. Like severed feet on a beach, or finding evidence of a tiny otherworldly creature. Each discovery is weirder than the last and uniquely unbelievable.

Sometimes the strangest things on Earth…are happening just below its surface. From tunnels carved by giant sloths to desperate attempts to stop the dead from rising again–these are the weird and wonderous tales of the sea beasts, hidden cities and impossible creatures that lurk beneath us.

Imagine free falling 30,000 feet without a parachute, or being buried alive and living to tell the tale. Or... what about getting trapped in a tiny room inside a sunken ship on the ocean floor...For three days? These are improbable yet true-life tales of surviving the most extraordinary conditions.