Sparkly Windows

In the centre of Bradford is a fairly new building. It's a block of flats. As it grew from foundations to finished article I slowly fell in love with it. Every morning, as we head for Mr B's office it seems to rise like a towering liner. The front looks (to me) like the prow of an enormous ship that somehow ended up at a very busy road junction. I'll have to take a shot of that one day so you can see what I mean.
Today I was surprised to see three men dangling, from what looked like bits of string cleaning the windows. They fascinated me so I thought I should share them with you.