During a recent visit to my cousin who lives in Victoria, British Columbia I had the opportunity to visit Christ Church Cathedral in downtown Victoria. The church is open to the public as long as they are not having a service and they do allow photography.
I set up my tripod and used my wide angle lens to take a series of photos without the use flash. I set the aperture at f/16 and took three photos of each scene at -2, 0, and +2 exposure values. When I got home I used Photomatix to blend each set of three images into one HDR (High Dynamic Range) photo.
Here are the results. These were taken on a very sunny day and the light streaming in from one side of the church definitely affected the outcome even with the HDR processing. My guess would be that a cloudy day might produce better results.