A viral picture of a ‘toilet’ on the Forth Bridge has left Scots utterly baffled and stunned on social media.
The snap shows a hole cut inside two planks of wood, which is surrounded by sheets of corrugated metal - presumably to give the user some privacy.
It is also dangles several hundred feet from the Firth of Forth below in between one of the structure’s girders and the rail line.
So, not exactly the safest looking lavy in the world.
The user, who shared the photo on Twitter yesterday, expressed her supposed discomfort at the thought of this quite unique loo.
She wrote: “The Forth Bridge toilet has really upset me.”
The photo left a number of people on social media completely confused as to its purpose, how to get in and where the bodily fluids exactly go.
One person wrote: “I refuse to believe that’s there for any other reason than a joke. There’s not even an entrance - the only one I see is a ladder but it leads to an empty space??”
Another said: “How do you even get in? Is there any way that does not involve stepping on air?”
One other commented: “Been over the bridge numerous times. Never noticed this though! If I did it would have continually bothered me how you actually used it without falling into the Forth.”
It is claimed that the toilet was originally built for use, but was deemed unsafe when the appropriate access was taken away.
One Twitter user said: “I worked on the Forth Bridge during the big refurbishment around 2000/2001 and can confirm these wee dunnies are legit. They couldn’t be used because the accesses were taken away. Better still were the big bothies mid bridge, as big as a village hall.”
Historic Environment Scotland definitely saw the funny side of the Tweet.
It wrote: "One of many reasons why the Forth Bridge is deserving of its World Heritage Site status. An engineering marvel indeed!"