Or they’re so deeply buried that you give up before you get to them.  One of the subjects discussed in the pub on Friday was the paintings of L S Lowry and where exactly they depicted.  There’s a book- Lowry’s City: A Painter and His Locale
which tries to track down a few of them but, after a bit of searching, I can’t find much online.  The wiki entry for Lowry names some locations (I didn’t know he’d done paintings of Cleator Moor, for instance), but no-one’s tagged them all on Google Maps.

Consider this a Lazyweb request- someone put Lowry’s paintings on a map for me please.