Siena - Pastorini Stained-Glass Window, c. 1549

This interior photograph of the Siena Cathedral depicts how the del Vaga/Pastorini window appears to people inside the church. 

Credits

Photo by Georges Jansoone, online courtesy Wikimedia Commons.

License:  This photo is licensed under the Creative Commons Attribution ShareAlike 2.5 License. In short: you are free to share and make derivative works of it under the conditions that you appropriately attribute it, and that you distribute it only under a license identical to this one.