Deep in the bowels of Liverpool Central station is a mystery door thousands of people pass by every day.
It may look pretty unassuming; a narrow silver hatch sandwiched in the middle of a corrugated metal backdrop. But considering Central is the busiest underground station outside London, serving 40,000 people daily, it's safe to assume that plenty of people will have spotted the door, and likely questioned exactly why it's there.
It was a tweet that first sparked debate amongst ECHO journalists about all of the door's potential uses. One Twitter user shared a photo of the perplexing gateway, writing: "I'm still unsure of the point of this door in Liverpool Central station".
