Welcome to Clean and Bright Windows the first Facebook where have I been working this week quiz.

The photo below is of a part of a building in Bath.
But the question is where? or on what building?
I would like to ask if no-one would post answers until next Saturday, as it would be unfair to others, there will be clue given midweek.
I have started with a reasonably easy one I hope.
Any comments related to the quiz itself and not the answers are welcomed.
Please do Like the page if you Like
Have fun guessing.