Our Australia tour was memorable with just one disappointment and that was we could not watch an opera at the Opera House in Sydney.
We reached there quite early and got a tour of the place. We were shown around and I was wonder struck with the various state-of-the-art equipment that was installed there for better acoustics. The seating arrangements were such that even those seated far behind could not have been disappointed.
This link has it all
Have you ever been to Australia?