Planning fallacy
The Sydney Opera House was expected to be completed in 1963. A scaled-down version opened in 1973, a decade later. The original cost was estimated at $7 million, but its delayed completion led to a cost of $102 million.
Economy of Sydney
Sydney received 8.2 million visitors in 2016, an 11.4 per cent increase from 2015. The main sources of Sydney's tourists were from north-east and south-east Asia. The Vivid Sydney festival, held annually each winter, attracted 1.7 million visitors in 2015–it is the biggest festival in Australia and one of the biggest of its kind in the world. The most visited landmark in the city is the Sydney Opera House, located at Bennelong Point, and is also the most visited landmark in Australia–the building received a $202 million renovation in 2017, known as the Renewal Project, and accommodates an average yearly audience of two million people. Tourism in Sydney generates approximately $30 billion to the state (NSW) economy each year according to 2010 statistics.