A man walks past graffiti on boarded up and closed storefronts in the Soho neighborhood of Manhattan during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., May 26, 2020. REUTERS/Mike Segar

A woman wearing a protective face mask walks past graffiti and photographs on boarded up and closed storefronts in the Soho neighborhood of Manhattan during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., May 26, 2020. REUTERS/Mike Segar

A woman wearing a protective face mask walks past graffiti on boarded up and closed storefronts in the Soho neighborhood of Manhattan during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., May 26, 2020. REUTERS/Mike Segar

The new digital artwork by graffiti artist STIK is seen in Picadilly Circus while people relax in the foreground, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 26, 2020. REUTERS/John Sibley

The new digital artwork by graffiti artist STIK is seen in Picadilly Circus while a cyclist rests in the foreground, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 26, 2020. REUTERS/John Sibley

Cuban artist Yulier Rodriguez talks to a child as he paints a mural amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Havana, Cuba, May 21, 2020. Picture taken on May 21, 2020. REUTERS/Alexandre Meneghini

Artists work on a mural by the sea amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Cojimar, Cuba, May 19, 2020. Picture taken on May 19, 2020. REUTERS/Alexandre Meneghini

Cuban artist Yulier Rodriguez paints a mural amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Havana, Cuba, May 21, 2020. Picture taken on May 21, 2020. REUTERS/Alexandre Meneghini

Cuban artist Luis Casas retouches a mural amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Cojimar, Cuba, May 19, 2020. Picture taken on May 19, 2020. REUTERS/Alexandre Meneghini

Cuban artist Luis Casas retouches a mural which reads in Spanish: "Protecting myself I protect others", amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Cojimar, Cuba, May 19, 2020. Picture taken on May 19, 2020. REUTERS/Alexandre Meneghini

Cuban artist "Mr Myl" paints a mural which reads in Spanish: "Courage", amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in downtown Havana, Cuba, May 20, 2020. Picture taken on May 20, 2020. REUTERS/Alexandre Meneghini

A person wearing a protective face mask walks by graffiti referencing Britain's prime minister Boris Johnson in East London following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 25, 2020. REUTERS/Henry Nicholls

A volunteer helps to cooking at a so called 'Olla comun', a communal cook-up to provide plates of hot food to those with dwindling incomes or nothing at all at Villa Francia area, as the spread of the coronavirus disease (COVID-19) continues, in Santiago, Chile May 15, 2020. Picture taken May 15, 2020. The graffiti depicts Eduardo Vergara Toledo, who was killed during the chilean dictatorship by a police patrol at Villa Francia area. REUTERS/Ivan Alvarado

A volunteer delivers food rations as he walks past a graffiti depicting businessmen at a so called 'Olla comun', a communal cook-up to provide plates of hot food to those with dwindling incomes or nothing at all at Villa Francia area, as the spread of the coronavirus disease (COVID-19) continues, in Santiago, Chile May 15, 2020. Picture taken May 15, 2020. REUTERS/Ivan Alvarado

A boy stand in front of a graffiti promoting the fight against the coronavirus disease (COVID-19) in the Mathare slums of Nairobi, Kenya, May 22, 2020. REUTERS/Baz Ratner

A boy walks in front of a graffiti promoting the fight against the coronavirus disease (COVID-19) in the Mathare slums of Nairobi, Kenya, May 22, 2020. REUTERS/Baz Ratner TPX IMAGES OF THE DAY

A woman walks past a graffiti promoting the fight against the spread of the coronavirus disease (COVID-19) in the Kibera slums of Nairobi, Kenya, May 22, 2020. REUTERS/Baz Ratner

A woman walks past graffiti depicting Pablo Picasso's Guernica, amid the coronavirus disease (COVID-19) outbreak, in Malaga, Spain, May 18, 2020. REUTERS/Jon Nazca

A woman wearing a protective face mask walks past graffiti depicting Pablo Picasso and Antonio Banderas, amid the coronavirus disease (COVID-19) outbreak, in Malaga, Spain, May 18, 2020. REUTERS/Jon Nazca

A woman wearing a protective mask walks in front of a graffiti, amid the coronavirus disease (COVID-19) outbreak in Rio de Janeiro, Brazil, May 13, 2020. REUTERS/Sergio Moraes

Graffiti is seen in the ground in Battersea Park, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 12, 2020. REUTERS/John Sibley

Graffiti is seen on adverts in East London following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 10, 2020. REUTERS/Toby Melville

Graffiti is seen on a wall in Sunderland, following the outbreak of the coronavirus disease (COVID-19), Sunderland, Britain, May 9, 2020. REUTERS/Lee Smith

A graffiti of San La Muerte and Saint Gauchito Gil is seen at the Villa 31 slum, as the spread of the coronavirus disease (COVID-19) continues in Buenos Aires, Argentina May 6, 2020. REUTERS/Agustin Marcarian

Artist Lionel Stanhope poses by his mural in Ladywell depicting the Supper at Emmaus by Caravaggio with added protective gloves, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 5, 2020. REUTERS/Hannah McKay

Artist Lionel Stanhope poses by his mural in Ladywell depicting the Supper at Emmaus by Caravaggio with added protective gloves, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 5, 2020. REUTERS/Hannah McKay

Artist Lionel Stanhope poses by his mural in Ladywell depicting the Supper at Emmaus by Caravaggio with added protective gloves, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 5, 2020. REUTERS/Hannah McKay

Artist Lionel Stanhope poses by his mural in Ladywell depicting the Supper at Emmaus by Caravaggio with added protective gloves, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 5, 2020. REUTERS/Hannah McKay

Artist Lionel Stanhope paints a mural in Ladywell depicting the Supper at Emmaus by Caravaggio with added protective gloves, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 5, 2020. REUTERS/Hannah McKay TPX IMAGES OF THE DAY

Artist Lionel Stanhope paints a mural in Ladywell depicting the Supper at Emmaus by Caravaggio with added protective gloves, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 5, 2020. REUTERS/Hannah McKay

Artist Lionel Stanhope paints a mural in Ladywell depicting the Supper at Emmaus by Caravaggio with added protective gloves, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 5, 2020. REUTERS/Hannah McKay

Artist Lionel Stanhope paints a mural in Ladywell depicting the Supper at Emmaus by Caravaggio with added protective gloves, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 5, 2020. REUTERS/Hannah McKay

A boy wearing a protective face mask touches a wall of graffiti outside the New York Aquarium as the spread of the coronavirus disease (COVID-19) continues, along the Coney Island boardwalk in the Brooklyn borough of New York, U.S., May 4, 2020. REUTERS/Shannon Stapleton TPX IMAGES OF THE DAY

A man sprays paint over the Regional Emblem of Hong Kong after anti-extradition bill protesters stormed the Legislative Council Complex on the 22nd anniversary of the handover from British to Chinese rule, destroying pictures and daubing walls with graffiti in Hong Kong, China July 1, 2019. Reuters has been awarded the 2020 Pulitzer Prize in Breaking News Photography for Hong Kong protests. REUTERS/Tyrone Siu TPX IMAGES OF THE DAY

Graffiti is seen on a boarded-up store as the global outbreak of the coronavirus disease (COVID-19) continues, in Santa Monica, California, U.S., May 4, 2020. REUTERS/Lucy Nicholson

A man wearing a protective face mask enters a building next to a graffiti showing actors from the movie "Pulp Fiction" John Travolta and Samuel L. Jackson wearing protective masks, during the coronavirus disease (COVID-19) outbreak, in Madrid, Spain May 3, 2020. REUTERS/Juan Medina

A woman leaves a building next to a graffiti showing actors from the movie "Pulp Fiction" John Travolta and Samuel L. Jackson wearing protective masks, during the coronavirus disease (COVID-19) outbreak, in Madrid, Spain May 3, 2020. REUTERS/Juan Medina

Graffiti in tribute to the NHS is seen in Pontefract, following the outbreak of the coronavirus disease (COVID-19), Pontefract, Britain, May 1, 2020. REUTERS/Lee Smith

A masked pedestrian walks past a wall covered in music and event posters from before the pandemic and activist "strike" graffiti, during the outbreak of the coronavirus disease (COVID-19) in Washington, U.S., April 30, 2020. REUTERS/Leah Millis

Belgian graffiti artist CAZ refreshes a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Wetteren, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist Bram De Ceurt stands next to a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Antwerp, Belgium April 30, 2020. REUTERS/Yves Herman

Original bits of graffiti with names and dates left by the Red Army soldiers in the last days of World War Two in 1945 are pictured on walls inside the Reichstag building, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany, April 23, 2020. Picture taken April 23, 2020. REUTERS/Fabrizio Bensch

Original bits of graffiti with names and dates left by the Red Army soldiers in the last days of World War Two in 1945 are pictured on walls inside the Reichstag building, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany, April 23, 2020. Picture taken April 23, 2020. REUTERS/Fabrizio Bensch

Original bits of graffiti with names and dates left by the Red Army soldiers in the last days of World War Two in 1945 are pictured on walls inside the Reichstag building, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany, April 23, 2020. Picture taken April 23, 2020. REUTERS/Fabrizio Bensch

Original bits of graffiti with names and dates left by the Red Army soldiers in the last days of World War Two in 1945 are pictured on walls inside the Reichstag building, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany, April 23, 2020. Picture taken April 23, 2020. REUTERS/Fabrizio Bensch

Belgian graffiti artist Bram De Ceurt stands next to a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Antwerp, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist Bram De Ceurt stands next to a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Antwerp, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist Bram De Ceurt stands next to a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Antwerp, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist Bram De Ceurt refreshes a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Antwerp, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist CAZ stands next to a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Wetteren, Belgium April 30, 2020. REUTERS/Yves Herman

A woman walks with a dog past Belgian graffiti artist CAZ's work did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Wetteren, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist CAZ refreshes a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Wetteren, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist CAZ refreshes a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Wetteren, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist CAZ refreshes a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Wetteren, Belgium April 30, 2020. REUTERS/Yves Herman

Belgian graffiti artist CAZ refreshes a work he did in support of the medical staff amid the coronavirus disease (COVID-19) outbreak, in Wetteren, Belgium April 30, 2020. REUTERS/Yves Herman

A man walks past a graffiti in support of the NHS, following the outbreak of the coronavirus disease (COVID-19), Marske-by-the-Sea, Britain, April 29, 2020. REUTERS/Lee Smith

An artist is seen doing graffiti in support of the NHS and key workers at the Marske Cricket Club, following the outbreak of the coronavirus disease (COVID-19), Marske-by-the-Sea, Britain, April 29, 2020. REUTERS/Lee Smith

An artist is seen doing graffiti in support of the NHS and key workers at the Marske Cricket Club, following the outbreak of the coronavirus disease (COVID-19), Marske-by-the-Sea, Britain, April 29, 2020. REUTERS/Lee Smith

An artist is seen doing graffiti in support of the NHS and key workers at the Marske Cricket Club, following the outbreak of the coronavirus disease (COVID-19), Marske-by-the-Sea, Britain, April 29, 2020. REUTERS/Lee Smith

An artist is seen doing graffiti in support of the NHS and key workers at the Marske Cricket Club, following the outbreak of the coronavirus disease (COVID-19), Marske-by-the-Sea, Britain, April 29, 2020. REUTERS/Lee Smith