A mysterious large cat was filmed by a doorbell camera casually strolling past a house in a quiet neighborhood.
Something was lurking outside in the darkness after midnight and nobody is quite sure who or what it was.
Does a Google Earth satellite image of a door in Antarctica really show an entrance to a secret base ?
Here we take a look back at our most popular general mystery stories from the last twelve months.
The famous attraction had long proven a popular destination for those with an interest in cryptozoological mysteries.
Eagle-eyed social media users had been discussing what could possibly be behind the partially hidden door.
This image of an apparent doorway into the Antarctic ice has been picked up by news outlets for a second time this week.
A very eerie spectacle was recently captured on camera at the dark and foreboding entrance to someone's attic.
Tiny little doors, sign posts and decorations have been found in and around the New York City neighborhood.
The controversial image was recently picked up by news outlets after being shared on social media.
A defense aerospace contractor has recounted the experiences of his great uncle who once worked at the secretive facility.
A man who had been staying at a hotel uncovered something rather disturbing at the back of one of the wardrobes.
A prison often described as one of the most haunted locations in the UK will be closing its doors in the new year.
Authorities ordered local residents to remain indoors as efforts were made to capture the beast.
The popular doorbell camera brand is offering a large cash sum to anyone who can capture evidence of extraterrestrials.
A clip showing a dark hooded figure in Westminster Abbey has been generating some lively debate on social media.
This eerie clip shows what appears to be the face of a mystery figure staring out of the window.
An eerie shape moving across a doorway was recently caught on camera by Andy Pollard at an old mill in Derbyshire, England.
A video clip recorded in a residential back yard shows a strange pint-sized creature covered in hair waddling around.
NASA's Curiosity rover has captured a photograph of what appears to be a doorway carved into the rock.