Slap on some paint and that would make a nice piece of gothic terrain.
I'll admit, the thought of a gallows at the top crossed my mind.
However, back when I dabbled in Flintloque, I had Gregory Peck's 'escape from the French' scene from Captain Horatio Hornblower, R.N., and I've never lost my image of it as a stone quay.
Of course, now I'm seeing Professor Moriarty dashing down the steps to a steam launch, with Sherlock and Dr. John in hot pursuit.
Thanks for the suggestion; may still go that way. I've more than one...
Doug