Siena - Unfinished Nave

Architects for the Cathedral at Siena (Duomo Siena) originally planned that it would have additional space.  This is a close-up view of the unfinished nave.

Click on the image for a closer view.

Credits

Photo by o2ma, 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.