"The Map Collection includes approximately 15,000 rare historic maps of countries and regions from around the world, the majority representing Australia. This includes some of the earliest cartographic works by explorers of Australiasia and the pacific."
Below is an example of the type of map you can discover. The image viewer, while not the easiest or fastest image viewer I have used, allows users to zoom in or out (through five different magnification levels), rotate left or right, save the image, send the image by email or print the image. The thumbnail view on the right hand side of the screen allows users to chose which portion of the map they want to look at in greater detail.