24-year-old geologist Daniel Robinson was last seen on June 23, 2021, leaving a job site in Buckeye, Arizona. His coworker watched as Daniel drove off toward the desert—and he was never seen again. Nearly a month later, a landowner discovered D...

On April 20, 1989, 37-year-old Patricia Meehan disappeared after crashing her car on Montana Highway 200 near Circle, Montana. In the days leading up to the incident, Patricia had been behaving unusually—her landlord noted that she seemed hyper...

On the night of September 4th, 1978, 13-year-old Scott Fandel and his 8-year-old sister, Amy, vanished from their family’s cabin in Sterling, Alaska. That evening, their mother, Margaret, dropped the children off at the cabin before heading int...

In August 1993, veteran hiking instructor Lyudmila Korovina led six young trainees into Siberia’s Khamar-Daban mountains. After good initial progress, the group was caught in days of freezing rain, leaving them soaked, cold, and exhausted. On A...

In February 1959, nine experienced Soviet hikers from the Ural Polytechnical Institute mysteriously died in the northern Ural Mountains. Led by Igor Dyatlov, the group had set up camp on the eastern slope of Kholat Syakhl. Overnight, something ...