Everybody photographs the Sydney Opera House from the outside. Some of my own efforts are in other galleries here. But the inside is interesting to photograph too, especially as it's not quite clear what you are allowed to photograph. Before every concert, there is an announcement, "a reminder that the use of photographic or recording equipment is strictly prohibited." But I take this to mean just in the concert hall during performances. I wouldn't use flash anyway, although I see flashes going off from the cheaper seats before the concert starts. So until somebody stops me and confiscates my camera, I will try to photograph some of the more interesting corners of the building, and the views from the building rather than of it.