A mind-boggling optical illusion in a tunnel in the US left one driver so perplexed that he didn't want to drive on.
A mind-bending optical illusion shows two people hugging one another - but which legs belong to which person ?
Recently uploaded footage shows what looks like a dome-shaped UFO slowly moving along the horizon.
A short audio clip of a football crowd chanting over and over has proven rather difficult to interpret.
Intriguing footage shows an airliner seemingly hovering motionless in the air - but is it just an optical illusion?
A very strange optical illusion showing what looks like a floating wheelie bin has recently gone viral online.
Some patients who 'died' for a short period have reported things that they couldn't possibly have known about.
This seemingly unremarkable image appears to show a tranquil shoreline on a starry evening, or does it ?
Researchers at the California Institute of Technology have developed an intriguing new sensory illusion.
According to researchers, your age group can be determined by how you initially interpret this image.
The photograph, which was posted on Reddit, shows a car with so much shine that it appears almost invisible.
Scientists have been investigating why words repeatedly spoken out loud sound like they are being sung.
Hot on the heels of 'laurel or yanny' comes another audio clip that seems to say two completely different things.
A simple audio clip of a word being spoken has divided listeners who can't agree on what the word actually is.
This fascinating optical illusion by mathematician Kokichi Sugihara has left Internet users scratching their heads.
An animated GIF of a jumping pylon seems to create the illusion of sound even when there is none.
An intriguing optical illusion has been leaving social media users scratching their heads this week.
Stop-motion animator Kevin Parry has created a short video clip that seems to defy the laws of physics.
An intriguing optical illusion involving a plate of strawberries has been doing the rounds online.
An intriguing optical illusion has been caught on camera from the shores of North America's largest lake.