After my visit, I can say it is not for all. It will be mostly appreciated by those who love applied science or students coming from intensive science subjects in their lower years.
Powerhouse Museum
Location: 500 Harris Street, Ultimo, NSW, 2007, Australia
Located in the old Ultimo Power Station building adjacent to Darling Harbour, the Powerhouse Museum is the flagship venue of Museum of Applied Arts and Sciences (MAAS). Its unique and diverse collection spans science, technology, design and decorative arts, engineering, architecture, health and medicine, fashion and contemporary culture.
Seems to small from the outside but has a lot to offer on their underground levels which stores the permanent exhibition.