When I was a young boy one of my favourite places to go during the holidays was the old push button museum (The Museum of Applied Arts and Sciences) in Sydney. In 1988 the museum moved across the road and is now known as the Powerhouse Museum. The museum still has some push button exhibits but there is loads of things to discover and learn as you roam the vast dark interior. It's a very affordable day out in Sydney especially when you compare it to a visit to Taronga Zoo. When my family visited there was an amazing Wiggles exhibit which was well worth the entry price alone. If you like science, arts, machines of industry and technology history the Powerhouse Museum is your perfect place to visit. Exhibits at the museum usually show the progression of inventions or historical moments of popular culture. I did have to laugh as I found the area about environmental awareness to be the best lit in the museum...now isn't that using the most power? Thee staff there are very friendly, thanks for getting my son in as a 3 year old! The Powerhouse Museum can be found at 500 Harris Street, Ultimo, Sydney. I highly recommend a visit as it's hours of fun for all ages. The Powerhouse Museum is the major branch of the Museum of Applied Arts and Sciences in Sydney, the other being the historic Sydney Observatory. Although often described as a science museum, the Powerhouse has a diverse collection encompassing all sorts of technology including Decorative arts, Science, Communication, Transport, Costume, Furniture, Media, Computer technology, Space technology and Steam engines. It has existed in various guises for over 125 years, and is home to some 400,000 artifacts, many of which are displayed or housed at the site it has occupied since 1988, and for which it is named — a converted electric tram power station in the Inner West suburb of Ultimo, originally constructed in 1902. It is well known, and a popular Sydney tourist destination. It has a quarterly magazine called Powerline sent free to members and available at the museum. The Powerhouse Museum houses a number of unique exhibits including the oldest operational rotative steam engine in the world. Dating from 1785, it is one of only a handful remaining that was built by Boulton and Watt and was acquired from Whitbread's London Brewery in 1888. This engine was named a Historic Mechanical Engineering Landmark by the American Society of Mechanical Engineers in 1986. Another important exhibit is Locomotive No. 1, the first steam locomotive to haul a passenger train in New South Wales, built by Robert Stephenson in 1854. The most popular exhibit is arguably "The Strasburg Clock Model", built in 1887 by a 25-year old Sydney watchmaker named Richard Smith. It is a working model of the famous Strasbourg astronomical clock in Strasbourg Cathedral. Smith had never actually seen the original when he built it but worked from a pamphlet which described its timekeeping and astronomical functions. Web Links : http://www.powerhousemuseum.com/ http://en.wikipedia.org/wiki/Powerhouse_Museumhttp://www.powerhousemuseum.com/wiggles/essay.php