ArcelorMittal Orbit: An architectural wonder

It allows visitors to see the entire Olympic Park from two observation platforms.

The project is expected to cost 19.1 million pounds, with 16 million pounds coming from Britain's richest man and Chairman of the ArcelorMittal Steel, Lakshmi Mittal.

Designed by Anish Kapoor and Cecil Balmond, Orbit is Britain's largest showcase of public art.

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The designers of the ArcelorMittal Orbit, Cecil Balmond (L) and Anish Kapoor, pose for photographs at the top of the ArcelorMittal Orbit in the London 2012 Olympic Park in east London.

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A helicopter flies near the Anish Kapoor designed ArcelorMittal Orbit tower at the Olympic site at Stratford in east London.

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A Sotheby's employee poses with Anish Kapoor's Untitled artwork at Sotheby's auction house in London.

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General view of the set-up "Leviathan" by Indian born, British based, artist Anish Kapoor for the Monumenta 2011 event in the nave of the "Grand Palais" in Paris

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Inside view of the set-up "Leviathan" by artist Anish Kapoor for the Monumenta 2011 event in the nave of the "Grand Palais" in Paris.

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Artist Anish Kapoor poses for the media next to his set-up "Leviathan" for the Monumenta 2011 event in the nave of the "Grand Palais" in Paris.

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Schoolchildren look at Anish Kapoor's "Tall Tree And The Eye" through fog created by Japanese artist Fujiko Nakama's "Fog" at the Guggenheim Museum in the Spanish Basque city of Bilbao.

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A city worker views buildings including the Lloyds building, reflected in the sculpture 'Sky Mirror' by Anish Kapoor in the financial district of the City of London.

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People are reflected in Anish Kapoor's sculpture "Sky Mirror 2006" in Hyde Park in London.

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Artist Anish Kapoor poses for a photograph in front of his work "C-Curve", part of his "Turning the World Upside Down" exhibition, in Hyde Park, central London.

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An employee poses with artist Anish Kapoor's untitled sculpture at the press view of the Summer Exhibition 2011 at the Royal Academy of Arts in London.

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Artist Anish Kapoor poses for a photograph with his sculpture 'Yellow' at the Royal Academy of Arts in London.

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Wax is fired from a sculpture by artist Anish Kapoor called 'Shooting Into The Corner' at the Royal Academy of Arts in London.

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A visitor views sculptures by artist Anish Kapoor at the Royal Academy of Arts, in London.

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A visitor is reflected in a sculpture called 'Turning World Upside Down' by artist Anish Kapoor at the Royal Academy of Arts in London.

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A woman walks in front of a creation by Anish Kapoor at the Maxxi, Italy's first national museum of contemporary art designed by Zaha Hadid, in Rome.

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A visitor views sculptures by artist Anish Kapoor at the Royal Academy of Arts, in London.

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A member of Tate staff looks at Anish Kapoor's Untitled 1990 work winner of the Turner prize in 1991, part of the Turner Prize : A Retrospective exhibition, at the Tate Britain Gallery in London.

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Visitors stands in front of a sculpture of artist Anish Kapoor in the Kunsthaus in Bregenz, Austria.

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A museum employee poses in front of "Untitled" from 1990 by Anish Kapoor during a preview for Tate Britain's exhibition entitled "Watercolour" in London.

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People walk close to an installation by artist Anish Kapoor, born in Bombay, at Naple's central Plebiscito square.