Door to nowhere

I feel rather like this thing. It's been a while since I had a cold this vicious - I couldn't even look at a screen yesterday, and that's pretty much unheard of for me.

I can share this, though:



I saw that opposite me through the window while reading in the first floor of the library on Friday - I'm not sure why the door was placed in mid-air there, unless the designer of the building went to the Prince of Persia school of architecture. Indeed, there seems to be a markedly obvious ledge just below it that could open up a route to the columns around to the right...