I think at this point australia is just selling dirt to maintain its standard of living.  This is because it is a land of 'dirt by sea', there is a lot of it and it's easy to ship.

I am not convinced that the buildings were a great addition - modern buildings tend to be built to the false premise that doing something completely different will make the place better.  On the contrary, what makes many great cities great is the careful architecture inside a vernacular.  Combine with what appears to be the typical disease of making huge roads and encouraging car traffic and I predict belgrade will lose its charm and livability.  Hopefully the food will remain good.