Australia is a BIG place - in fact just going around the perimeter one time took over 13,000 miles. Now when they want something to show, it's got to be big. There is an entire collection of "Big Aussie Things" which can be viewed here -https://en.m.wikipedia.org/wiki/Australia%27s_big_things.
Hey, this even makes Shrek look tiny! http://biggoldenguitar.com.au/the-big-golden-guitar/