I was in an elevator this past winter in one of the office towers which inhabit the concrete canyons of Toronto's financial district.The panelling of the windows on each of the four sides ( once the doors were closed) of the elevator were slightly off, causing a visual ripple and infinity effect.I took three photographs and used autostitch freeware to create the mirror image you see. Of note, is that each of the three prominent reflections of the floor number, they are different, showing '3', '5', '7', hence the title of the photograph.