This intrigues me. There has to be a story as to why it is there.
An extreme sportsperson attempting to leap the roof in his or her wheelchair, celebrating the joy of the Olympics and Paralympics perhaps, only to end in grief?
Who knows.
More stones making the river here.

Oh that totally begs for an explanation………and I’m sure it would be a good one.
Pam
Weird, isn’t it?
It fell from the sky!
A gift from the gods?
Dem wheel’s not sporting wheels!
In the sense of foul play? Now there’s a thought!
More that the wheel size isn’t the sort a sporting wheelchair user would choose.
Ah but ambition pre-sponsorship would not be stopped by something as slight as that!
Make one up – you know you want to.
I thought I just had…
But I think there could be a bigger story that could come out of it
I love your picture and I love Jo’s comment!! Cracking me up..
AND Isobel I am astonished at the great and interesting things you find to photograph!!!
It is a funny old world isn’t it?
How odd and nice job spotting it!
I have seen it several times, wondered and forgotten. This time I wondered and photographed.