I wrote the phrase 'cultural cathedral' as a desciptor of the modern-day role of museums the other day. In using the phrase, I meant to characterize museums as places where a visitor might experience a sense of awe, humility, aesthetic beauty, and spiritual insight. In other words, a humanistic/cultural site that functions in the same way cathedrals do in the context of religion. It is such a graceful and apt phrase that I knew at once that I couldn't have made it up -- so I looked it up. A quick google search shows that the Getty and the Sydney Opera House have been referred to by this moniker. So, who came up with it? What was its earliest referent? Any help?