In 1978, five men vanished in Yuba County. Disturbing evidence fueled a series of questions: Did they get lost — or was something more sinister at play?

When unknown substances fell from the sky in Oakville in 1994 and caused unexplained illnesses among residents, theories about their origins emerged.

Since the '70s, US military personnel have reported strange sightings and dealt with mysterious health issues but were forced to stay silent — until now.

In recent history, a bizarre mystery has rattled beachcombers and investigators alike: Why are severed feet being found on the shores of the Salish Sea?

In 1973, a fishing trip in Pascagoula led to an unbelievable encounter that drew attention from the media and changed two men's lives forever.

Visitors and tour guides share their chilling accounts about the Myrtles Plantation, a hot spot for hauntings and a place with a dark, complicated past.

With multiple deaths reported each year, Lake Lanier has sparked spooky folklore, leading locals and others to question what lies beneath the surface.

Steeped in legend, Mount Shasta and its rich Indigenous history have attracted spiritual seekers, cult leaders and secret societies for decades.