Missing Daughter, White Chair: The Murder of Mary Ann Worley in Kent, WA

Who Killed Marilyn McIntyre? The Pinhead Blood Stain That Broke a 29-Year Freeze

The Duct Tape Fingerprint That Nailed Evans Gantheer - Rebecca Koster Case

Alexander the Great’s Lost Tomb in Siwa? Plus Cleopatra and Vlad Dracul Clues

Bronze Age Collapse: Atlantis Anchors at Gibraltar, Minoan Tsunami, Indus Reboot?

Stonehenge’s Hidden City, Moai Bodies Revealed, and the Sphinx’s Painted Face

Sticky Rice Mortar to Mercury Rivers: China’s Hidden Ancient Engineering

Delos Underwater Pompeii at 6 Feet, Santa Maria Anchor, Yonaguni Mystery

Inside Nazca's Orca, Stonehenge Julia Set, and Carnac's Electric Stones

Giza's Hidden River and Teotihuacan's Mercury Tunnel - What Lies Beneath?

Point Rosee, L'Anse aux Meadows & the Ulfberts: Secrets of Viking Expansion

Colosseum Trapdoors, Taj Mahal Solstice, Baalbek's 1242-Ton Mystery

Belize Stalagmites, Cokolistli DNA, and an Inca Gunshot Rewrite History

Voynich Secrets, Qumran’s 364-Day Calendar & The Georgia Guidestones’ 2014 Block

Amelia Earhart, USS Lexington, and the Elusive Nazi Gold Train

Best Friend With a .243: The Festus Murder of Larry Holman

Cigarette Filters, a .22 and River Road: The Murder of Tara Rose Muncie

Mandy LaMare Vanished by Tazlina Airstrip - Alaska's Copper River Manhunt

Tonya Hart Murder in Moscow, Idaho - Skate Shoe Prints and Hi-Point 9mm

NASA Portals, Magnetite Megaliths: Science Behind the Bermuda and Devil's Triangles

Dumpster Clue That Caught Donta Page - Peyton Tuttle Murder in Denver

Alfred Gaynor: Springfield's Winter Serial Murders Cracked by Pawned Earrings

Angie Drake Vanishes After Karaoke - Fitchburg, Wisconsin 2005

Lizzie Borden at 92 Second Street - Mutton Stew and the Giggle on the Stairs

Fall River 1892: The Broken-Handle Hatchet and a Family Secret

How a Chipped Boulder Exposed Alyssa Self’s Killer in 1991 St. Louis

The Day Mel Fisher Found Atocha - Inside the 1985 Treasure Haul

St. Louis Officer Joanne Liskum Murder - The Cop's Son Confession

The $8,500 Clue: Ed and Minnie Marin’s 1985 Lewis County Murders

Natural History Museum Secrets: Gough's Cave Cannibals, Cursed Amethyst, Rat Bomb

Inside the Channel Islands Kelp Forest: Elephant Seals, Garibaldi and Wolf Eels

Raising Amundsen's Maud in Cambridge Bay - The Cut Airbags Breakthrough

Inside Avatak's Race to Kujwak: Propeller Leak, Icebergs and a Dead Tug

Grand Bahama’s White Sand Ridge: Up Close with Atlantic Spotted Dolphins

Kunsthistorisches Museum: Maximilian's Joust Machine, Cellini Saliera Heist, Alchemist Gold

Burning Car, Empty Car Seat - How Cell Data Caught Christine Larson's Killer

Talland Man: Sacrifice or Lynching? Inside Denmark's Bog Body Case

Inside New Guinea's Bismarck Sea: Stonefish Venom, Cuttlefish Camouflage and WWII Wrecks

Countdown to Earth's End: From Dino-Killing Asteroids to the Red Giant Sun

Hidden Oceans in Earth's Rocks and the Hunt for Kepler-6-2 Water Worlds

Robert Hanson's Trophy Map: The Anchorage Hunter of the Knik River

Hair in Her Heart: Hunting Idaho killer Paul Ezra Rhodes

North Pole, Alaska's Serial Killer: Thomas Richard Bundy and Doris Oring

Seven Vanish in 24 Hours at Manly Hot Springs - The Silka Manhunt

Ground Zero in the Arctic: Dr. Pierce Sellers, ICESat-2 and Rising Seas

The Guitar Case That Caught George Porter - Teresa Jones' Christmas Murder in Kamiye

Alaska's 22-Inch Machete Rampage - Aaron Rodgers Jr. From Palmer to Anchorage

Gap-Toothed Predator: The Lintons, a Silver Pontiac, and an Alaskan Hideout

The McCarthy Mail Day Massacre: Louis Hastings’ 1983 Rampage in Alaska

Inside the Hermitage: Rasputin’s Real Killer, Scythian Tattoos, Catherine’s Table