A shadow person phenomenon reportedly experienced by thousands of people around the world.
The Hollow Earth Theory proposes that the interior of our planet is hollow.
A statue at Graceland Cemetery in Chicago, Illinois, thought to be haunted.
Sound below 20 Hz, lower than humans can perceive, which may induce feelings of fear, dread, or even depression.
John Titor was an alleged time traveler from the year 2036, who shared detailed information about his time machine, mission, and original timeline with forum users in the years 2000 and 2001.
A type of theoretical black hole that may lack a singularity -- one that you could safely enter, and one which could, theoretically, allow travel though time.
Painted in the 15th Century, this is one of many paintings that alien theorists claim depict an extraterrestrial object.
Recent documentaries and alleged sightings would claim that the Megalodon are not extinct. In fact, one could be standing behind you right now.
In September 1972, the Toronto Society for Psychical Research, along with poltergeist expert Dr. A.R.G. Owen, set out to accomplish one singular objective: To create a ghost.