I'm not a religious person, but I have always thought that Cathedrals were amazingly beautiful. On my last trip to D.C., I visited the National Cathedral and was astonished by the details in the design. The architectural aspects of cathedrals have always been quite unique to its purpose. You never see an office building with quite the same beauty or detail..... What's your favorite Cathedral in the U.S.? (Aesthetically speaking)