Eagle-eyed social media users had been discussing what could possibly be behind the partially hidden door.
A woman who had been traveling with her partner along the M6 recently photographed something unusual in the sky.
Over the last 50 years, one of England's major roads has had its fair share of mysterious occurrences.
One stretch of the M6 motorway in England has gained something of a haunted reputation in recent years.
A puzzled motorist recently recorded footage of a riderless motorcycle cruising along a French motorway.
In a bizarre scene this week a man in a dressing gown ironed clothes in the middle of the motorway.
Two crop circles have turned up near the M4 motorway in England that appear to depict the face of Jesus.
Austrian motorway bosses have hired druids to drain the negative energy from infamous accident black spots.