An interesting film of the Opera House from 1972, in the final stages of construction - notice the near total lack of modern-day OH&S standards!https://www.youtube.com/watch?v=sLM7Dpt4RdM
We don't have an Iconic building of the likes of the Opera House here in Melbourne, however the MCG, or Melbourne Cricket Ground would be the best-known Melbourne landmark internationally.
It has a capacity of over 100,000, and hosts 2 of the biggest days in World Sport - the AFL Grand Final, and the opening day of the Boxing Day cricket test. There is nothing like the roar of an MCG crowd! It's not unusual for the MCG to hold 2 games per week during the regular AFL season, quite often with crowds up to 70-80,000 if popular teams are playing.
The MCG has also been used as the Main Stadium for the 1956 Olympics & 2006 Commonwealth Games, and was used as a US Military camp during WW2.
The MCG has been continually updated over the years, the oldest part of the 'current' stadium are the light towers, installed in 1985, while the oldest stand is the 'Great Southern Stand' constructed in 1992. The 'Northern' stand was constructed for the 2006 Commonwealth Games, and replaced the 1956 Olympic stand, the 1967 Northern Stand, and the Iconic Member's stand from 1927. There is a lengthy waiting list of up to 20 years to become an MCC member (the MCC runs the stadium). It's not unusual for people to be put on the membership waiting list by family at birth, and they will eventually be offered membership around 18 years later - A couple of friends were in this situation.
An interesting Wikipedia rundown of the MCG's historyhttps://en.wikipedia.org/wiki/Melbourne_Cricket_Ground
Essendon - Whatever it takes......