We also visited the Royal Australian Mint where coins are made. At the Mint there was a stair case with 5 cent coins in it. For a coin to be made they have to first come up with a design, then the design is put on to a computer where they add words and numbers before programming a machine to engrave the design onto a stamp. Then they put the stamp into a machine which stamps the blanks (coins with nothing on them) with the design, and then you have a coin!
We had a great time in Canberra and I can't wait to go there again.