For whom the bell tolls

I don't really need to say anything about this, do I? After all, we all know that this is the world's biggest four faced clock and that Big Ben is the name of the bell, not the tower. And you can find out lots (and hear the chimes) on Wikipedia.

Once again, the 30 year old Trip has acquitted itself well (any lack of sharpness is due to being digitised on my flatbed scanner)