The most striking feature of the Sydney Opera House is its roof, which is made up of a series of large, white shells. These shells are designed to look like the sails of a ship, and they give the opera house its distinctive appearance. The shells are made of precast concrete, and they are supported by a steel frame.
The platforms
The opera house is built on a platform that is located in Sydney Harbour. The platform is made of concrete, and it is supported by piles that are driven into the seabed. The platform is about 185 metres long and 120 metres wide.
The interiors
The interiors of the opera house are just as impressive as the exteriors. The opera house contains two main performance venues: the Concert Hall and the Joan Sutherland Theatre. The Concert Hall has a capacity of 2,679 people, and it is used for orchestral concerts, operas, and ballets. The Joan Sutherland Theatre has a capacity of 1,507 people, and it is used for operas, musicals, and plays.
In addition to the two main performance venues, the opera house also contains a number of other facilities, including a restaurant, a cafe, a bar, and a gift shop.