H.H. HOLMES AND THE WORLD'S FAIR: AMERICA'S FIRST SERIAL KILLER

THE BLUE HOLE DAHAB: THE MOST DANGEROUS DIVE SITE IN THE WORLD

Episode 123 | History's Mysteries — Mysterious Events In this Mystery episode we focus on the Blue Hole near Dahab, Egypt — a natural sinkhole in the Red Sea reef where an underwater tunnel called the Arch sits at 55 meters depth, 15 meters below the safe limit for recreational air diving, and where over 200 divers have died attempting it. This episode covers what nitrogen narcosis does to a diver's judgment at depth, why the false chimney inside the Arch kills people who mistake it for the way out, the specific case of Yuri Lipski whose 2000 death was captured on camera and has been watched millions of times, and why experienced divers continue attempting the Arch despite knowing the statistics. At the entrance to the Blue Hole, on the rocky shore, there are memorial plaques. Dozens of them. The site is still dived almost every day. #HistoryMystery #BlueHoleDahab #CaveDiving #Diving #MysteryPodcast

ELISA LAM: THE ELEVATOR, THE WATER TANK, AND THE QUESTIONS THAT NEVER CLOSED

Episode 122 | History's Mysteries — Mysterious Events In this Mystery episode we focus on Elisa Lam — the 21-year-old Canadian student found dead in a rooftop water tank at the Cecil Hotel in Los Angeles in 2013, three weeks after she was last seen in elevator footage that went viral and has never been fully explained to everyone's satisfaction. This episode covers the Cecil Hotel's dark history, what the elevator footage actually shows and the official explanation for the door behavior, the roof access that was found unlocked, the coroner's ruling of accidental drowning consistent with a bipolar episode, and why the case remains officially closed while the questions remain publicly open. The case is officially closed. The questions are not. #HistoryMystery #ElisaLam #CecilHotel #TrueCrime #MysteryPodcast

MISSING 411: LINKING MISSING PERSONS AND US CAVE SYSTEMS

Episode 121 | History's Mysteries — Mysterious Events In this Mystery episode we focus on the Missing 411 phenomenon — the documented pattern of disappearances clustered near cave systems across the United States, catalogued by former police detective David Paulides, and what it does and doesn't tell us about 45,000 documented caves and the people who vanish near them. This episode covers specific cases including the 1969 disappearance of three-year-old Dennis Martin in the Great Smoky Mountains and the 2011 case of six-year-old Jaryd Atadero found years later at a higher elevation than he disappeared, the overlap between missing persons clusters and cave system maps, and the serious criticisms of the Missing 411 methodology — including selection bias and the fact that the National Park Service maintains no centralized public database of missing persons. The map looks the way it looks. Make of it what you will. #HistoryMystery #Missing411 #CaveDisappearances #UnsolvedMysteries #MysteryPodcast

ONE HUNDRED AND TWENTY EPISODES

Episode 120 | Season 6 Capstone — History Episodes + Series Finale In this History episode we close out Season 6 and the first chapter of History Mystery — drawing together 120 episodes to name the fifth pattern this season adds to the four established before it, and to ask the question that six seasons of history and mystery are ultimately pointing toward. History is not something that happened. It is something that is still happening. #HistoryMystery #HistoryPodcast #SeriesFinale #120Episodes #WorldHistory

THE SEASON 6 MYSTERY: WHAT WE KNEW AND DIDN'T DO

Episode 119 | Season 6 Capstone — Mystery Episodes In this Mystery episode we step back from the individual stories of Season 6 and name the pattern that connects all of them — not the mystery of the unknown, but the mystery of the known that was not acted on, and the specific individuals across eighteen episodes who decided the truth mattered more than the cost of saying it. The mystery is not what people did not know. The mystery is what people knew and did not do. #HistoryMystery #Mystery #Accountability #UnsolvedMysteries #MysteryPodcast