A window with no view

I had lunch today with a group of friends at a local restaurant where we normally sit in the main dining area.  Because there were quite a few of us they seated us in a small more private dining area that had three windows up high on the wall.  I knew that these windows were just decoration as this wall was shared with the business next door.   But because the light was coming in the front facing "real" windows I fell in love with the shadows and reflections.   You just never know what you might see where you have been many times before...it pays to look up.