Back in the 19th Century a Pennsylvania dentist wrote about a bizarre and nightmarish dental phenomenon.
Students and teachers across Colorado have been encountering strange symbols at their universities.
A mysterious illness saw hundreds of young children fall ill at a school in Bangladesh last month.
Locals in the Doukkala region were left baffled after the area became covered in mounds of suds.
Scientists have debunked the claim that mammoth meat was served at an Explorers Club dinner in New York.
A new book alleges that the world famous vampire might not have come from Transylvania after all.
The spirit board was found stuffed inside a heating vent by builders carrying out renovation work.
Law enforcement agencies have been left baffled by a spate of unexplained explosions in Fair Lawn.
A peculiar picture, which shows what looks like a figure walking on the clouds, has gone viral online.
A new mystery has arisen in the area where nine hikers died under mysterious circumstances back in 1959.
Military officials have been conducting an investigation after the objects fell from the sky on Saturday.
A video showing a tree burning from the inside out while producing very little smoke has appeared online.
Land art and sculpture artist David Allen has captured footage of a peculiar natural phenomenon in Maine.
Two friends in Utah have recorded footage of a mysterious ice circle filled with egg-like objects.
Researchers investigating claims of a gold-filled train in a hidden tunnel in Poland have come up empty.
French scientist Pascal Cotte has suggested that Da Vinci's masterpiece may not be quite what it seems.
A glass was seen sliding across a table by itself during a live morning breakfast show in Honduras.
It's been over seven decades since the first aircraft disappeared while flying over the enigmatic region.
One of the largest hauls of sunken treasure in the world has finally been located after 300 years.
A mysterious humming noise that has been driving residents round the bend may be coming from the sea.