Sydney Opera House
The cost of the project so far, even in October 1966, was still only $22.9 million, less than a quarter of the final $102 million cost. However, the projected costs for the design were at this stage much more significant.
Sydney Festival
Not without controversy, the festival has faced challenges with profitability in its early years and was subject to a riot at a New Year's Eve concert at Sydney Opera House in 1980, when 68 people were arrested and 150 were taken to hospital; and criticism about the festival's artistic credibility.