1

"Some believe that a group of serial killers are responsible for the mysterious deaths of young men across the U.S., all linked to a “smiley face” symbol found near their bodies."

2

"The human brain has difficulty distinguishing between a genuine smile and a “duchenne” smile, but it can detect a fake smile with ease, making it seem unsettling when someone smiles unnaturally."

3

"When you’re experiencing sleep paralysis, your brain is awake but your body can’t move. Many experience terrifying hallucinations during this time, often involving a figure sitting on their chest."

4

"Sarah Winchester, the widow of the inventor of the Winchester rifle, built an enormous, labyrinthine mansion with stairways leading to nowhere and doors that open into walls, believing she was haunted by the ghosts of people killed by her husband’s invention."

5

"The song that ice cream trucks play, “The Entertainer,” was composed in the early 1900s and used in funeral homes to transport the dead to their final resting place."

6

"In some parts of the world, the practice of “live burial” still exists, where people are buried alive under the belief that they’re dead, only to later be discovered alive after struggling for air."

7

"The Donner Party, a group of American pioneers in the 1840s, resorted to cannibalism after getting stranded in a snowstorm."

8

"There’s a story of a cursed phone number in Japan—when people dial it, they reportedly hear unsettling voices or experience strange occurrences soon after."

9

"There is a folklore known as ‘black eyed children’. This paranormal folklore speaks of mysterious children with completely black eyes, who ask for rides or entry into people’s homes. They are often accompanied by a sense of dread."

10

"In 1997, an extremely powerful underwater sound, known as “The Bloop,” was detected in the Pacific Ocean. Its source remains unidentified."

11

"There have been cases of “the boy in the attic,” where someone lives secretly in your home for months or even years, without you knowing until they’re discovered."

12

"People in the small town of Taos, New Mexico, report hearing a low-frequency hum that drives them to madness, but no one has ever been able to identify its source."

13

"The SS Baychimo, a ship that was abandoned in 1931 in the icy waters of the Arctic, is still seen drifting around the region, despite numerous attempts to recover it."

14

"There have been over 1,000 unexplained disappearances in the Bermuda Triangle, with ships and planes vanishing without a trace."

15

"In the Congo River Basin, there are stories of a dinosaur-like creature, resembling a sauropod, still living in remote areas of the jungle. It has never been proven to exist but remains a chilling mystery."