Plays, ballet, opera or musical productions are performed in the building. It is home to the Australian Opera Company, the Sydney Theater Company and the Sydney Symphony Orchestra. It is managed by the Opera House Trust, a public body of the New South Wales state government.

The Sydney Opera House is an expressionist construction with a radically innovative design, and is 185 meters long and around 120 meters wide. It is supported by 580 pillars sunk to a depth of 25 meters below sea level. Its power supply has a capacity equivalent to the electricity consumption of a city of 25,000 people. The energy is distributed by 645 kilometers of cable.

Although the roof structures of the Sydney Opera House are commonly referred to as shells, they are made up of precast concrete panels supported by precast concrete ribs. These shells are covered with bright white and matt cream colored tiles, forming a faint inverted "V" pattern, which from a distance appear uniformly white. The interior of the building is constructed of pink granite quarried from the Tarana region, wood and plywood sourced from New South Wales.

The idea of building an opera house in Sydney began to materialize in the late 1940s when Eugene Goossens, director of the Sydney Conservatory of Music in the state of New South Wales, argued that the city needed to have a place suitable for large theatrical productions.

For its construction, a competition was held in which a total of 233 projects from 32 different countries participated, and the winning design was announced in 1957, with the project by Jørn Utzon, a Danish architect, winning. On the land chosen for the construction of the complex, the old Fort Macquarie was located, then converted into a tram depot, which had to be demolished in 1958.

Its construction was not without controversy, so it underwent several redesigns and refocuses of the initial idea. This fact produced, in general, a strong delay in time, and that the final work could not be inaugurated until the year 1973. However, the final result was worth it and became the iconic building of the city of Sydney and of Australia, to be one of the largest buildings in the world in terms of its image and its architectural value, thus opening the way for the construction of buildings with geometric shapes of great complexity within modern architecture.

Welcome to Australia!