It would be so cool to actually see the dynamics of the architecture of the opera house in real life than rather just seeing it on the tube. It would be as wonderful as visiting the statue of liberty (which I have never seen in real life either, lol).
I have however, been to the White House in Washington D.C. but its not as glamorous as you see it in the media. Lots of homeless people hang around there, which is kinda sad given the fact the president of the U.S. sees all of this. I'm sure he has other issues that he deals with like the war and such, but its an image that sticks in your mind, ya know.