1Devil’s Kettle
There is a waterfall where nobody knows where the water goes. Minnesota’s Devil’s Kettle Falls dumps into a giant hole with no visible exit. Researchers have poured dye, ping-pong balls, even logs into it, then watched the lake for any sign of them. So far, none have ever been found.
2Gafsa Lake
A mysteriously lake appeared out of nowhere in the middle of the Tunisian desert in 2014. The lake was named Gafsa lake by the local shepherds who found it. Local scientists believe it is radioactive and formed most likely due to seismic activity.
3Loretto Chapel spiral staircase
In Santa Fe, New Mexico a nameless stranger came out of nowhere and built a mysterious spiral staircase in the Loretto Chapel out of foreign wood and primitive tools. The finished staircase seem to defy physics it lacks the newel or central pole usually used to support and stabilize a spiral staircase. It is thought by the nuns of that church that the carpenter was Saint Joseph.
4English sweating sickness
In 1485, a mysterious disease named English sweating sickness broke out causing people to sweat to death in a matter of hours. The disease claimed the lives of tens of thousands before mysteriously vanishing.
5Taos Hum
There is a mysterious sound in the town of Tao in New Mexico called the "Taos Hum". Only 2% of the population can hear it, and no one knows where the sound comes from.
6Diamond studded golden owl
A diamond studded golden owl was buried somewhere in France in 1993. There is a book of riddles leading to its location, but it still hasn't been found. There is a 1,000,000 franc prize for the person who finds it.
7Kraterokheirodon
There is a mysterious fossil animal found in the Petrified Forest National Park in Arizona that has been named Kraterokheirodon. It is known only from a single tooth so strange that it is impossible to classify what kind of animal it came from.
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8Spring-Heeled Jack
Spring-Heeled Jack is a mysterious boogeyman that was said to ring residents of Londons’ doorbells dressed as a bear, a ghost or a devil and scratch them with metal claws before leaping away with unnatural agility. Sightings of him stretched from 1837 to 1904.
9Solway Firth Spaceman
The Solway Firth Spaceman is a mysterious figure seen in a 1964 photograph that no one knew the identity of for 5 decades. The photographer was visited by two men in black not long after, fueling the fire of UFOlogists who believed it to be a conspiracy
10Phantom barber
In 1942, residents of Pascagoula, Mississippi lived in fear of the "phantom barber": a criminal who would sneak into homes at night only to steal locks of hair from his victims. Though an arrest was made, many believe it to be a setup, and the identity of the phantom barber remains a mystery.