Here is a colourful effect by refracting sunlight from a coated window glass of an office building,.
Here is a colourful effect by refracting sunlight from a road sign in Gatineau, QC, Canada.
Here is a colourful effect by refracting sunlight from a road sign in Los Angels, CA, U.S.A. This one taken by my geological engineer/exploration geologist daughter Évelyne has second-order reflection.
