Riders pass near the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 23, 2020. REUTERS/Jonathan Ernst

"House I" by Roy Lichtenstein can be seen through the iron fence surrounding the National Gallery of Art Sculpture Garden, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

Glass polygons, currently bathed in blue light at night to honour healthcare workers, designed by I.M. Pei, reveal the west wing of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

"House I" by Roy Lichtenstein and "Cheval Rouge" by Alexander Calder stand in the National Gallery of Art Sculpture Garden, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

Glass polygons, currently bathed in blue light at night to honour healthcare workers, designed by I.M. Pei, reveal the west wing of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

The sculpture "Site a l'homme assis" by artist Jean Dubuffet can be seen in the mezzanine window of the east wing of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

A woman walks on the steps of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

A view shows a reflection of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

People walk near the National Gallery of Art on the National Mall, largely empty of tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

The sculpture "Site a l'homme assis" by artist Jean Dubuffet can be seen in the mezzanine window of the east wing of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

Glass polygons designed by I.M. Pei reveal the west wing of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

Glass polygons designed by I.M. Pei reveal the east wing of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

The sculpture "Knife Edge Mirror Two Piece" by artist Henry Moore reveals the west wing of the National Gallery of Art, closed to tourists during the coronavirus disease (COVID-19) outbreak in Washington, U.S., May 22, 2020. Picture taken May 22, 2020. REUTERS/Jonathan Ernst

A man wearing a protective mask looks on inside a reopened National Gallery of Modern and Contemporary Art, as Italy eases some of the lockdown measures put in place during the coronavirus disease (COVID-19) outbreak, in Rome, Italy May 18, 2020. REUTERS/Yara Nardi

A man wearing a protective mask looks on inside a reopened National Gallery of Modern and Contemporary Art, as Italy eases some of the lockdown measures put in place during the coronavirus disease (COVID-19) outbreak, in Rome, Italy May 18, 2020. REUTERS/Yara Nardi

A man wearing a protective mask visits a reopened National Gallery of Modern and Contemporary Art, as Italy eases some of the lockdown measures put in place during the coronavirus disease (COVID-19) outbreak, in Rome, Italy May 18, 2020. REUTERS/Yara Nardi

A woman wearing a protective mask visits a reopened National Gallery of Modern and Contemporary Art, as Italy eases some of the lockdown measures put in place during the coronavirus disease (COVID-19) outbreak, in Rome, Italy May 18, 2020. REUTERS/Yara Nardi

A man wearing a protective mask speaks on the phone as the National Gallery of Modern and Contemporary Art reopens, as Italy eases some of the lockdown measures put in place during the coronavirus disease (COVID-19) outbreak, in Rome, Italy May 18, 2020. REUTERS/Yara Nardi

Jude Hajjaj, carries her cat near a picture of her cat painted on the wall by her father Osama Hajjaj, who teams up with his neighbours in creating works of art at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. REUTERS/Muhammad Hamed TPX IMAGES OF THE DAY

A cat painted on the wall by Jordanian caricaturist Osama Hajjaj, who teams up with his neighbours in creating works of art at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. REUTERS/Muhammad Hamed

A neighbour of the Jordanian caricaturist Osama Hajjaj, takes his dogs on a walk after finishing his drawing at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. REUTERS/Muhammad Hamed

Osama Hajjaj, a Jordanian caricaturist, teams up with his neighbours in creating an art at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. The Arabic sentence reads, "Stay at home". REUTERS/Muhammad Hamed

Osama Hajjaj, a Jordanian caricaturist, teams up with his neighbours in creating works of art at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. The Arabic sentence read "Stay at home". REUTERS/Muhammad Hamed

Neighbours of the Jordanian caricaturist Osama Hajjaj, team up in creating works of art at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. REUTERS/Muhammad Hamed

A Jordanian caricaturist, Osama Hajjaj sits with his daughter as they team up with their neighbors in creating works of art at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. REUTERS/Muhammad Hamed

A neighbour of the Jordanian caricaturist Osama Hajjaj, teams up in creating works of art at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. REUTERS/Muhammad Hamed

Neighbours of the Jordanian caricaturist Osama Hajjaj, team up in creating works of art at their roof during the curfew imposed by the Jordanian government amid concerns over the spread of the coronavirus disease (COVID-19) in Amman, Jordan, May 10, 2020. Picture taken May 10, 2020. REUTERS/Muhammad Hamed

A "Bus stop gallery", displaying art made under quarantine is seen following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

A woman walks past a "Bus stop gallery", displaying art made under quarantine following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

Sarah Lamarr and her 4 year old daughter, Rosie, who started a "Bus stop gallery" look at art work at a bus stop following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

Sarah Lamarr and her 4 year old daughter, Rosie, who started a "Bus stop gallery" look at art work at a bus stop following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

A "Bus stop gallery", displaying art made under quarantine is seen following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

A "Bus stop gallery", displaying art made under quarantine is seen following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

A man takes a photograph of a "Bus stop gallery", displaying art made under quarantine following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

A "Bus stop gallery", displaying art made under quarantine is seen following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

A "Bus stop gallery", displaying art made under quarantine is seen following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

A "Bus stop gallery", displaying art made under quarantine is seen following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

Sarah Lamarr and her 4 year old daughter, Rosie, who started a "Bus stop gallery" pose for a photograph at a bus stop with art work following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

Sarah Lamarr and her 4 year old daughter, Rosie, who started a "Bus stop gallery" look at art work at a bus stop following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

Sarah Lamarr and her 4 year old daughter, Rosie, who started a "Bus stop gallery" look at art work at a bus stop following the outbreak of the coronavirus disease (COVID-19), London, Britain, April 27, 2020. REUTERS/Hannah McKay

Detail of a red telephone box used as a community art gallery, as the spread of the coronavirus disease (COVID-19) continues, in Settle, Yorkshire, Britain April 24, 2020. REUTERS/Lee Smith

People look at pictures inside a red telephone box used as a community art gallery, as the spread of the coronavirus disease (COVID-19) continues, in Settle, Yorkshire, Britain April 24, 2020. REUTERS/Lee Smith

A boy looks at pictures inside a red telephone box used as a community art gallery, as the spread of the coronavirus disease (COVID-19) continues, in Settle, Yorkshire, Britain April 24, 2020. REUTERS/Lee Smith

Detail of a red telephone box used as a community art gallery, as the spread of the coronavirus disease (COVID-19) continues, in Settle, Yorkshire, Britain April 24, 2020. REUTERS/Lee Smith

Pictures are seen inside a red telephone box used as a community art gallery, as the spread of the coronavirus disease (COVID-19) continues, in Settle, Yorkshire, Britain April 24, 2020. REUTERS/Lee Smith

People look at pictures inside a red telephone box used as a community art gallery, as the spread of the coronavirus disease (COVID-19) continues, in Settle, Yorkshire, Britain April 24, 2020. REUTERS/Lee Smith

Pictures are seen inside a red telephone box used as a community art gallery, as the spread of the coronavirus disease (COVID-19) continues, in Settle, Yorkshire, Britain April 24, 2020. REUTERS/Lee Smith

Artist Sergei Pronin works on a painting, which depicts a monument to Russian poet Alexander Pushkin, in an art gallery in Zheleznovodsk, Russia April 15, 2020. Sergei Pronin, aged 31, stayed at the Pushkin city gallery to continue his work and guard the building during a self-isolation regime, which was imposed by local authorities to prevent the spread of the coronavirus disease (COVID-19). Picture taken April 15, 2020. REUTERS/Eduard Korniyenko

Artist Sergei Pronin opens the door of an art gallery in Zheleznovodsk, Russia April 15, 2020. Sergei Pronin, aged 31, stayed at the Pushkin city gallery to continue his work and guard the building during a self-isolation regime, which was imposed by local authorities to prevent the spread of the coronavirus disease (COVID-19). Picture taken April 15, 2020. REUTERS/Eduard Korniyenko

Artist Sergei Pronin paints a plate in an art gallery in Zheleznovodsk, Russia April 15, 2020. Pronin, aged 31, stayed at the Pushkin city gallery to continue his work and guard the building during a self-isolation regime, which was imposed by local authorities to prevent the spread of the coronavirus disease (COVID-19). Picture taken April 15, 2020. REUTERS/Eduard Korniyenko

A general view shows the Pushkin art gallery in Zheleznovodsk, Russia April 15, 2020. Artist Sergei Pronin, aged 31, stayed at the Pushkin city gallery to continue his work and guard the building during a self-isolation regime, which was imposed by local authorities to prevent the spread of the coronavirus disease (COVID-19). Picture taken April 15, 2020. REUTERS/Eduard Korniyenko

Artist Sergei Pronin works on a painting, which depicts a monument to Russian poet Alexander Pushkin, in an art gallery in Zheleznovodsk, Russia April 15, 2020. Sergei Pronin, aged 31, stayed at the Pushkin city gallery to continue his work and guard the building during a self-isolation regime, which was imposed by local authorities to prevent the spread of the coronavirus disease (COVID-19). Picture taken April 15, 2020. REUTERS/Eduard Korniyenko

Artist Sergei Pronin works on a painting, which depicts a monument to Russian poet Alexander Pushkin, in an art gallery in Zheleznovodsk, Russia April 15, 2020. Sergei Pronin, aged 31, stayed at the Pushkin city gallery to continue his work and guard the building during a self-isolation regime, which was imposed by local authorities to prevent the spread of the coronavirus disease (COVID-19). Picture taken April 15, 2020. REUTERS/Eduard Korniyenko

The Pink Supermoon is seen rising behind the National Gallery for Foreign Art in Sofia, Bulgaria, April 7, 2020. REUTERS/Stoyan Nenov

A sign indicates that the National Gallery of Art has been closed to the public due to the coronavirus threat in Washington, U.S., March 14, 2020. REUTERS/Will Dunham TPX IMAGES OF THE DAY

Visitors gather on the stairs outside the National Gallery of Art, that has been closed to the public due to the coronavirus threat in Washington, U.S., March 14, 2020. REUTERS/Will Dunham

Torin Cooney, 7, watches on as Kailen Cooney, 11, kicks the art piece "Monument #32 Helter Shelter" by Callum Morton, rendered in the form of U.S. President Donald Trump's head, behind the Art Gallery of Ballarat in Ballarat, Victoria, Australia, January 20, 2020. REUTERS/Andrew Kelly NO RESALES. NO ARCHIVES.

A protester writes pro-feminist messages next to the art piece "Monument #32 Helter Shelter" by Callum Morton, rendered in the form of U.S. President Donald Trump's head, behind the Art Gallery of Ballarat in Ballarat, Victoria, Australia, January 20, 2020. REUTERS/Andrew Kelly NO RESALES. NO ARCHIVES.

A woman walks past the National Gallery of Art as the U.S. Capitol is seen in the background in Washington, U.S., January 13, 2020. REUTERS/Tom Brenner

Britain's Prince Harry and his wife Meghan, Duchess of Sussex stand with High Commissioner for Canada in the United Kingdom Janice Charette as they view a special exhibition of art by Indigenous Canadian artist, Skawennati, in the Canada Gallery during their visit to Canada House in London, Britain January 7, 2020. Daniel Leal-Olivas/Pool via REUTERS