Best viewed at Original size.

For Brigid, who expressed the view that "all stairs lead somewhere". Not this time...

For anyone wondering, the marking on the wall isn't a face or graffiti (in the same way that THIS one isn't); it's just discolouring.

(Side images taken at 17mm, f/18, 1/20th of a second, ISO 100. Centre image taken at 27mm, f/14, 1/13th of a second, ISO 100)