The Outback is actually a part of Australia, and not Australia in general.
But, the world knows us as the outback, so that's what we are. But anyway, The outback is just the vast empty that is the middle and some of the west coast of Australia.
The outback is very pretty, but it's full of racist assholes.
I personally like the Great Barrier Reef, and some of the tropical rain forests in Northern Queensland. I'm from South Queensland, so I was close to both of those things, so it makes sense they are my favourites.