Between the bars.

I believe that not enough people look up at their surrounding enough as they go about their daily lives.
I do. I look up a lot. No, not star gazing or not when I am driving my taxi per sae; but when I am stopped, when I am walking, when I am sitting.
You see things from a different angle and a common building takes on a totally different perspective.
Just like this one.
Why have bars on such a high, unreachable window. Is that light coming from between the bars?.
More questions than answers, I know, but at least I have posed the questions.