South African artist Igshaan Adams stands amongst suspended sculptures and textile pieces which form part of his solo exhibition "Kicking Dust" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

South African artist Igshaan Adams stands amongst suspended sculptures and textile pieces which form part of his solo exhibition "Kicking Dust" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

South African artist Igshaan Adams stands amongst suspended sculptures and textile pieces which form part of his solo exhibition "Kicking Dust" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

South African artist Igshaan Adams stands amongst suspended sculptures and textile pieces which form part of his solo exhibition "Kicking Dust" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

South African artist Igshaan Adams stands amongst suspended sculptures and textile pieces which form part of his solo exhibition "Kicking Dust" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

South African artist Igshaan Adams stands amongst suspended sculptures and textile pieces which form part of his solo exhibition "Kicking Dust" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

South African artist Igshaan Adams stands amongst suspended sculptures and textile pieces which form part of his solo exhibition "Kicking Dust" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

Visitors view large scale copper, brass and stainless steel sculpture "Virgins", which forms part of U.S. artist Matthew Barney's major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

U.S. artist Matthew Barney stands beside his large scale copper, brass and stainless steel sculpture "Virgins", which forms part of his major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

Visitors view large scale copper, brass and stainless steel sculpture "Virgins", which forms part of U.S. artist Matthew Barney's major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

U.S. artist Matthew Barney stands beside his large scale copper, brass and stainless steel sculpture "Diana", which forms part of his major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

Visitors view copper plates paced near to large scale sculpture "Cosmic Hunt", which forms part of U.S. artist Matthew Barney's major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

U.S. artist Matthew Barney stands beside his large scale copper, brass and stainless steel sculpture "Diana", which forms part of his major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

U.S. artist Matthew Barney stands beside his large scale copper, brass and stainless steel sculpture "Sawtooth Battery", which forms part of his major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease, in London, Britain, May 18, 2021. REUTERS/Toby Melville 

U.S. artist Matthew Barney stands beside his large scale copper, brass and stainless steel sculpture "Sawtooth Battery", which forms part of his major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

Large scale copper, brass and stainless steel sculpture "Sawtooth Battery", by U.S. artist Matthew Barney, which forms part of his major exhibition "Redoubt", is displayed at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

U.S. artist Matthew Barney stands beside his large scale copper, brass and stainless steel sculpture "Elk Creek Burn", which forms part of his major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

U.S. artist Matthew Barney stands beside his large scale copper, brass and stainless steel sculpture "Sawtooth Battery", which forms part of his major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

U.S. artist Matthew Barney stands beside his large scale copper, brass and stainless steel sculpture "Elk Creek Burn", which forms part of his major exhibition "Redoubt" at the Hayward Gallery reopening as coronavirus disease (COVID-19) restrictions continue to ease in Britain, London, Britain, May 18, 2021. REUTERS/Toby Melville 

A woman uses the installation "Two Roaming Beds" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

A woman poses with an "Upside Down Goggel" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

A woman poses with an "Upside Down Goggel" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

Women use "Upside Down Goggels" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

A woman rides the installation "Isometric Slides" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

A woman rides the installation "Isometric Slides" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

A woman uses the installation "Two Flying Machines" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

People use the installation "Two Flying Machines" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

People use the installation "Two Flying Machines" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

A woman poses as she looks into the installation "Snake" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

A woman poses as she looks into the installation "Snake" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth

People ride the installation "Isometric Slides" at the Carsten Holler: Decision exhibition at the Hayward Gallery in central London, Britain June 9, 2015. REUTERS/Stefan Wermuth TPX IMAGES OF THE DAY

A surface-to-air missile mounted on top of the Hayward Gallery at Southbank in central London, February 7, 2015. The six-tonne Bloodhound missile has been preserved, restored and now shown by British artist Richard Wentworth in the Cold War section of 'History is Now', an exhibition on Britain since the Second World War. REUTERS/Toby Melville (BRITAIN - Tags: MILITARY SOCIETY) 

A surface-to-air missile mounted on top of the Hayward Gallery, with the London Eye behind, at Southbank in central London, February 7, 2015. The six-tonne Bloodhound missile has been preserved, restored and now shown by British artist Richard Wentworth in the Cold War section of 'History is Now', an exhibition on Britain since the Second World War. REUTERS/Toby Melville (BRITAIN - Tags: MILITARY SOCIETY) 

A bus passes a surface-to-air missile mounted on top of the Hayward Gallery, at Southbank in central London, February 7, 2015. The six-tonne Bloodhound missile has been preserved, restored and now shown by British artist Richard Wentworth in the Cold War section of 'History is Now', an exhibition on Britain since the Second World War. REUTERS/Toby Melville (BRITAIN - Tags: MILITARY SOCIETY) 

A surface-to-air missile mounted on top of the Hayward Gallery, with the London Eye behind, at Southbank in central London, February 7, 2015. The six-tonne Bloodhound missile has been preserved, restored and now shown by British artist Richard Wentworth in the Cold War section of 'History is Now', an exhibition on Britain since the Second World War. REUTERS/Toby Melville (BRITAIN - Tags: MILITARY SOCIETY) 

Artist Martin Creed poses for a photograph next to his latest installation, 'Work No 1812: Brick Wall,' part of the 'What's the point of it ?' exhibition, on the roof of the Hayward Gallery in London January 28, 2014. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

Artist Martin Creed poses for a photograph next to his latest installation, 'Work No 1812: Brick Wall,' part of the 'What's the point of it ?' exhibition, on the roof of the Hayward Gallery in London January 28, 2014. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

Artist Martin Creed poses for a photograph next to his latest installation, 'Work No 1812: Brick Wall,' part of the 'What's the point of it ?' exhibition, on the roof of the Hayward Gallery in London January 28, 2014. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY TPX IMAGES OF THE DAY) 

A Hayward Gallery staff member poses for a photograph in 'Work No. 200: Half the air in a given space,' an installation by artist Martin Creed, part of the 'What's the point of it ?' exhibition, London January 28, 2014. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

A Hayward Gallery staff member looks at an installation by artist Martin Creed, part of the 'What's the point of it ?' exhibition, London January 28, 2014. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

A Hayward Gallery staff member looks at an installation by artist Martin Creed, part of the 'What's the point of it ?' exhibition, London January 28, 2014. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

A Hayward Gallery staff member looks at an installation by artist Martin Creed, part of the 'What's the point of it ?' exhibition, London January 28, 2014. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

A Hayward Gallery staff member looks at an installation by artist Martin Creed, part of the 'What's the point of it ?' exhibition, London January 28, 2014. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

A visitor looks at the light installation "You and I, Horizontal" from 2005 by Anthony McCall at an exhibition entitled "Light Show" at the Hayward Gallery in London January 29, 2013. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

A woman poses for a photograph inside the light installation "You and I, Horizontal" from 2005 by Anthony McCall at an exhibition entitled "Light Show" at the Hayward Gallery in London January 29, 2013. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

A woman poses for a photograph inside the light installation "You and I, Horizontal" from 2005 by Anthony McCall at an exhibition entitled "Light Show" at the Hayward Gallery in London January 29, 2013. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

A visitor holds her baby up to look at "Exploded View (Commuters)" from 2011 by Jim Campbell at an exhibition entitled "Light Show" at the Hayward Gallery in London January 29, 2013. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

Visitors wear protective coverings on their shoes as they walk through a light installation called "Chromosaturation" from 1965-2012 by Carlos Cruz-Diez at an exhibition entitled "Light Show" at the Hayward Gallery in London January 29, 2013. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

An artwork of a taxidermied Jack Russell terrier entitled "I'm Dead (2010)" is displayed during a media viewing of artist David Shrigley's first major UK exhibition at the Hayward Gallery in London January 31, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: SOCIETY ENTERTAINMENT) 

David Shrigley's work Nutless (2002) seen at the media view of his first major UK exhibition David Shrigley: Brain Activity at the Hayward Gallery in London on January 31, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: SOCIETY ENTERTAINMENT ANIMALS) 

David Shrigley poses next to taxidermied Jack Russell I'm Dead (2010) during the press view of his first major UK exhibition David Shrigley: Brain Activity at the Hayward Gallery in London on January 31, 2012. REUTERS/Olivia Harris (BRITAIN) 

David Shrigley poses next to taxidermied Jack Russell I'm Dead (2010) during the press view of his first major UK exhibition David Shrigley: Brain Activity at the Hayward Gallery in London on January 31, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: SOCIETY) 

Scottish artist David Shrigley poses next to Ostrich (2009) during the media view of his first major UK exhibition David Shrigley: Brain Activity at the Hayward Gallery in London January 31, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: SOCIETY ENTERTAINMENT) 

Scottish artist David Shrigley poses next to Ostrich (2009) during the media view of his first major UK exhibition David Shrigley: Brain Activity at the Hayward Gallery in London January 31, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: SOCIETY ENTERTAINMENT) 

A woman passes an artwork entitled Untitled (2012) during a media viewing of artist David Shrigley's first major UK exhibition at the Hayward Gallery in London January 31, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: SOCIETY ENTERTAINMENT) 

An artwork of a taxidermied Jack Russell terrier entitled "I'm Dead (2010)" is displayed during a media viewing of artist David Shrigley's first major UK exhibition at the Hayward Gallery in London January 31, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: SOCIETY ENTERTAINMENT) 

Air stewardess Samantha Atherton poses for a photograph with a three dimensional portrayal of Abbey Road, at the Hayward Gallery in London September 1, 2011. The artwork by 3D artists "Joe and Max", is part of a campaign by VisitBritain to promote Britain overseas and is part of the worldwide exhibition "You're Invited". REUTERS/Luke MacGregor (BRITAIN - Tags: ENVIRONMENT SOCIETY TRAVEL) 

Four women, Margaret Reeve (L), Martha Cotton (2L), Ethel Jackson and Lauriel Stewart (R) pose for a photograph to recreate the image on the front of the Beatles Abbey Road album cover, at the Hayward Gallery in London September 1, 2011. The women were standing on a three dimensional artwork by 3D artists "Joe and Max", which is part of a campaign by VisitBritain to promote Britain overseas and is part of the worldwide exhibition "You're Invited" . REUTERS/Luke MacGregor (BRITAIN - Tags: ENVIRONMENT SOCIETY TRAVEL) 

A employee poses with artist Tracey Emin's artwork "White Rose" during a preview of her exhibition "Love is What You Want" at the Hayward Gallery in London, May 16, 2011. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

British artist Tracey Emin poses with her artwork "Love is What You Want" during her exhibition at the Hayward Gallery in London, May 16, 2011. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT PROFILE SOCIETY)