Sydney Opera House, roof detail (west elevation)

The Sydney Opera House, located on Bennelong Point, is arguably the most iconic exemplar of modern expressionist architecture. The distinctive structural design, composed of interlocking precast concrete shells and clad in white and matte cream ceramic tiles, gives rise to striking sculptural forms, known as "sails". The project's original designer, Utzon, relinquished his role in 1966 due to controversy regarding time delays for completion and costs, and the project was not fully completed until 1973. The Sydney Opera House is a major performing arts venue, renowned for its pioneering acoustic and structural engineering.