While not large by new museum standards, this gem had a very diverse collection. One floor is devoted to dinosaurs and another to the extinct animals of Australia with very good signage.
The Aboriginal Gallery is especially interesting with several videos depicting the struggles of these people to gain respect in their homeland.
My favorite area was the displays of art work in many different media by aboriginal artists. The colorful paintings and interesting sculptures mostly depict nature as their main focus is their believe in the connection of all living things.
There is also a cafe and small gift shop. My time was well spent in this museum and was a nice quiet break from all the excitement of Sydney.