Whilst overseas I visited many cathedrals and churches in the UK, France and Belgium many rich with stained-glass windows hundreds of years old. I could have picked the any one of these, but having travelled all the way north to Orkney, and failing to find a geocache there (or indeed, anywhere north of Fife) due to a dropped GPS and poor car-GPS substitute , I decided to use one of the small, but well-decorated windows at Saint Magnus Cathedral in Kirkwall for this locationless.
http://www.stmagnus.org