At least I think that's what it is.
When Screen Saver serves up its never ending supply of images that I have taken over the last couple of decades I don't always remember what they are.
But I'm pretty sure that I shot this out of the window of an apartment on Isle de La Cité that I once lived in.
On the third floor - fourth if you are an American.
And Hotel de Ville was a frequent subject of my camera work.