The Sydney Opera House Bennelong Point in Sydney, New South Wales, Australia.

It was conceived and largely built by Danish architect Jørn Utzon, who, in 2003, received the Pritzker Prize, architecture's highest honour. The citation stated:

The Sydney Opera House was made a UNESCO World Heritage Site on 28 June 2007. Currently, it is the most recently constructed World Heritage Site to be designated as such, sharing this distinction with such ancient landmarks as Stonehenge and the Giza Necropolis. It is one of the 20th century's most distinctive buildings and one of the most famous performing arts centres in the world.

The Sydney Opera House is situated on Bennelong Point in Sydney Harbour, close to the Sydney Harbour Bridge. It sits at the northeastern tip of the Sydney central business district (the CBD), surrounded on three sides by the harbour (Sydney Cove and Farm Cove) and neighboured by the Royal Botanic Gardens.

Contrary to its name, the building houses six venues. The two largest venues, the Opera Theatre and Concert Hall, are housed in the two larger sets of shells. Three smaller theatres, the Drama Theatre, Playhouse and Studio are situated on the western side of the building and the Utzon Room on the eastern side. The Guillaume at Bennelong restaurant occupies the smaller set of shells. A seventh performance space, The Forecourt, is regularly used for free community events and large scale outdoor performances.

As one of the busiest performing arts centres in the world, providing over 1,500 performances each year attended by some 1.2 million people, the Sydney Opera House promotes and supports many performing arts companies including the four key resident companies Opera Australia, The Australian Ballet, the Sydney Theatre Company and the Sydney Symphony. The Sydney Opera House also presents more than 700 of its own performances annually that offer an eclectic mix of artistic and cultural activities for all ages from the educational to the experimental. It is also one of the most popular visitor attractions in Australia, with more than seven million people visiting the site each year.

Description

The Sydney Opera House is a modern expressionist design, with a series of large precast concrete "shells", each composed of sections of a hemisphere of the same radius, forming the roofs of the structure, set on a monumental podium. The building covers 1.8 hectares (4.5 acres) of land and is 183 metres (605 ft) long and 120 metres (388 ft) wide at its widest point. It is supported on 588 concrete piers sunk as much as 25 metres below sea level.

The roofs of the building are covered in a subtle chevron pattern with 1,056,006 glossy white- and matte-cream-colored Swedish-made tiles from Höganäs AB, though, from a distance, the shells appear a uniform white.

The Concert Hall is located within the western group of shells, the Opera Theatre within the eastern group. The scale of the shells was chosen to reflect the internal height requirements, with low entrance spaces, rising over the seating areas and up to the high stage towers. The smaller venues, Drama Theatre, Playhouse, and The Studio are located beneath the Concert Hall. A smaller group of shells set to one side of the Monumental Steps houses the Bennelong Restaurant. Although the roof structures of the Sydney Opera House are commonly referred to as "shells" (as they are in this article), they are in fact not shells in a strictly structural sense, but are instead precast concrete panels supported by precast concrete ribs.

Apart from the tile of the shells and the glass curtain walls of the foyer spaces, the building's exterior is largely clad with aggregate panels composed of pink granite quarried in Tarana. Significant interior surface treatments also include off-form concrete, Australian white birch plywood supplied from Wauchope in northern New South Wales, and brush box glulam.

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