From Graces Guide
Powerhouse Museum, Darling Harbour, Sydney, New South Wales
An excellent collection of artefacts and records relating to science, technology and design, housed in a large building featuring part of an old power station. Many large, interesting and historically important items of machinery are displayed, although this may not be obvious from the website.
Those wishing to take photographs should note that the lighting in the museum is rather 'subtle'
Sources of Information
-  Powerhouse Museum's web page relating to the 1785 engine