Funny when talking about famous architecture... no modern building has paid for itself in tourism as much as the Sydney Opera House.

But even though it is a tourist attraction extraordinaire... it has been a nightmare from the very beginning... and is known as the world's biggest planning disaster. It cost 14 times its' original estimate, and has terrible acoustics... with $200 million spent to try to correct it. And about another $300 million was spent on repairs that included new roof tiles. What makes it even more crazy is the fact that it is not equipped to handle grand opera!!

And yet it has generated billions towards Australian tourism. Oh the irony!