Like many buildings that want light in the room, but not visibility, our bathroom has glass bricks in the window. Outside is a green hedge with some bare branches and this is what the glass bricks look like from inside, with a tweak of Photoshop of course!
Here the sky is reflected in the panes of glass of a high rise building. The glass in the narrow panels must be a slightly different colour.
A piece of car window smashed onto a bed of leaf litter.