YOU CAN WATCH THIS PRESENTATION IN MUSIC HERE (You have the link on the first slide):
"The construction of the beautiful freestanding, sculptural tripartite Opera House was one of the longest contractual sagas of the century. Sadly, architect Jorn Utzon became the scapegoat of a scandalous political affair and in 1966 withdrew from his project. Sitting on Bennelong Point, virtually in the Harbour and overlooked by the great Sydney Harbour Bridge, the Opera House is completely exposed, as three-dimensional as the orange segments its forms are based on. It is all roofs with an imposing base. These were made possible by Ove Arup. Originally the winner of an international open competition in 1957, it was a scheme that broke most of the rules. It was finally completed in August 1973 by other hands under the direction of Peter Hall."
— Dennis Sharp. Twentieth Century Architecture: a Visual History.