1973: Sydney Opera House: a brief history of its design and construction - YouTube
The Construction of Sydney Harbour Bridge - YouTube
Historical photo of Circular Quay http://www.myplace.edu.au/TLF_resources/R2583/index.html
Images for the construction of Circular Quay https://www.google.com/search?q=construction+of+circular+quay&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjhuP-Dlu_PAhUCSCYKHd07DKMQsAQIOA&biw=1642&bih=1202
History of Sydney Harbor Bridge. http://www.sydneyharbourbridge.info/
Created by Kathy Schrock (kathy@kathyschrock.net) 360° image taken by Kathy Schrock, May 2016.