Don Wildman recounts a US president's close encounter with a UFO, investigates a strange signal from a missing airplane and reveals the incredible truth behind bizarre lines etched into the desert floor.

The Old State Prison Museum; a monster in the forest outside Vancouver; a UFO police car.

Don Wildman investigates a ghostly visitation from a distinguished U.S. president, a monstrous sea creature with an insatiable appetite and the final resting place of Noah's Ark.

A sinister rag doll is said to have the power to kill; a curse is connected to the Salem witch trials; an out-of-this-world abduction rocks a community.

The truth behind an insect-like monster; the tale of the vengeful spirit that haunted mobster Al Capone; a ghostly ship is found adrift on the high seas.

Investigating an ominous warning from beyond the grave; uncovering a mammoth mystery that sprung from the desert floor; revealing the truth behind a UFO sighting.

A convicted killer's revenge; a curious corpse; Thomas Edison's bizarre inventions.

Don Wildman investigates a potential clue in the disappearance of Amelia Earhart, uncovers a video camera that captured UFOs in the Arizona night skies and examines mysterious debris that may be proof of alien intelligence.

An incendiary tale of spontaneous human combustion; a flesh-eating beast known as the skunk ape; a child possessed by an unspeakable evil.

A magnificent gem imbued with a deadly curse; a message that could have averted the RMS Titanic's collision course with disaster; the mystery of the Jersey Devil.

Don Wildman examines footage of a snake-like monster swimming down an Alaskan river, investigates a set of mysterious bones found under Benjamin Franklin's home and weathers a storm of biblical proportions.

Don Wildman investigates possible photographic evidence from the Roswell crash, a ghostly houseguest and a seductive dancer accused of spying for the German army during WWI.

The case of accused axe murderer Lizzie Borden; a crucial piece of evidence in the hunt for Bigfoot; the true origins of the Bermuda Triangle.

Dozens of perfectly preserved mummies in Mexico; an intriguing piece of Yeti evidence; the world's most famous UFO conspiracy.

The most macabre secret of the Wild West; a blood-sucking beast; a religious icon scorched by the forces of evil.

A bizarre siege on a Kentucky farm; a harrowing series of ghostly encounters that torment a young girl; a serial killer who continues his violent reign of terror from beyond the grave.

A spooky pact to communicate with Thomas Edison from beyond the grave; a bizarre legal case that proved a house was haunted; the real story behind the legendary curse of King Tut's tomb.

The chilling mission to hunt down the world's most legendary beast; strange patterns on the ocean floor; the secret behind the origins of Stonehenge.

A mysterious skeleton sparks rumors of visitors from outer space; a haunted hotel inspires a bloodcurdling bestseller; a terrifying encounter with a legendary beast.

Don Wildman investigates a real-life witch's curse, reveals the truth behind a message from Mars, and recounts the tragic tale of a heartbroken ghost.

Don Wildman investigates a Texas woman's terrifying encounter with a UFO, the mysterious circumstances surrounding the death of a princess and sightings of a strange half-man, half-rabbit creature.

The extraordinary, often bizarre treasures housed in America's museums represent wondrous chapters in history, but a physical display can tell only part of their story. Behind each artifact are amazing tales and secrets to be revealed -- tales sometimes brimming with scandal, mystery, murder and intrigue. In "Mysteries at the Museum," host Don Wildman visits a wide variety of museums across the United States, taking viewers on a sometimes shocking tour of America's past by re-examining what's been left behind. Interviews, archival footage and re-enactments bring to life the artifacts' enduring mysteries, some that have never been told before on television.

New ideas challenge basic beliefs about biblical history and the ancient world.

Don Wildman takes his thirst for adventure into terrifying new territory to explore mankind's darkest mysteries.

Travel Channel's fascination with mysteries grows with this series, adding it to a catalog that also features "Mysteries at the Castle," "Mysteries at the Museum" and "Monumental Mysteries." America's vast network of national parks -- dense expanses of virtually unexplored wilderness -- offers breeding grounds for the unsolved and unexplained. Each hourlong episode presents several perplexing stories detailing unusual events at sites including Montana's Glacier National Park, Pennsylvania's Gettysburg National Military Park, California's Shasta National Forest, and Puerto Rico's El Yunque National Forest.

"Expedition Unknown" has taken Josh Gates to the ends of the Earth and back to investigate iconic unsolved events and other puzzling stories. Now, he's searching for evidence that life exists on other planets. "Hunt for Extraterrestrials" takes Josh to four continents to uncover the truth behind extraterrestrial legends and mysteries. Along the way, he visits NASA's mission control center in Houston, where "international travel" takes on a whole new meaning. Gates also attends the UFO Festival in Roswell, N.M., participating in the out-of-this-world festivities that celebrate America's most famous UFO case.

Intrigued by legendary mysteries and driven by curiosity, Josh Gates is on a mission for answers. "Exhibition Unknown" chronicles his global adventures as he investigates iconic unsolved events, lost cities, buried treasures and other puzzling stories. Armed with a degree in archaeology, a quick wit and a thirst for action, Gates investigates recent developments before embarking on a detailed exploration. Whether he's trekking through Fiji in search of Amelia Earhart's remains or diving the deep seas of Panama to locate Captain Morgan's pirate ship, Gates' roughshod expeditions lead him one step closer to the truth.

As host of popular series including "Expedition Unknown" and "Destination Truth," adventurer and avid explorer Josh Gates has visited more than 100 countries. Some journeys, of course, have stood out more than others, and on "Legendary Locations," Gates showcases magical places around the world through his unique point of view. Each location has an unforgettable backstory, a secret origin or a forgotten lore, like an ancient city carved into Jordan's sandstone cliffs, a favorite summer getaway of notorious drug lord Pablo Escobar, and an Irish landscape now known as Luke Skywalker's lair. With every spin of the globe, Josh investigates ancient legends and surprising folklore that travelers and locals alike love to experience.

Some secrets are hidden in perilous places, unforgiving landscapes inaccessible to all but a few intrepid individuals. In "Code of the Wild," Chris and Casey Keefer tackle rugged terrain and enter uncharted territory to track down the truth behind history's greatest mysteries. Plumbing the depths of caves and trekking through dense forests, the brothers deploy their survival skills and tracking techniques to answer longstanding questions. "I'm a history buff, and when it comes to unexplained mysteries I go digging for evidence, says Casey. "I use my love of technology to get us closer to the truth," adds Chris. "Our equipment helps us to go deeper and see clearer than ever before." Episodes follow Chris and Casey as they head deep into the Amazon to find a city of gold, trek into the heart of Alaska looking for the wreckage of a plane that vanished while carrying Reps. Hale Boggs and Nick Begich and hike into the Appalachian Mountains in search of a lost Confederate treasure.

Travel Channel's lengthy library of conundrum-solving series ("Mysteries at the Castle," "Mysteries at the Hotel," "Mysteries at the Monument," et al) adds investigations that answer the call of the wild. From gun-wielding ghosts and strange, savage creatures in Cleveland National Forest to a mysterious underground city pointing to powerful forces at work inside the Grand Canyon National Park, North America's countryside houses abundant mysteries and unexplained phenomenon. Half-hour episodes include eyewitness accounts and key facts to tell strange, little-known stories of the great outdoors.