People queue while they wait to enter at the Reina Sofia museum as it reopens to the public, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

Visitors look at Pablo Picasso's painting 'Guernica' as the Reina Sofia museum reopens to the public, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

A visitor looks at Pablo Picasso's painting 'Guernica' as the Reina Sofia museum reopens to the public, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

An employee stands next to some paintings as the Prado museum reopens to public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

An employee stands next to Tintoretto's painting 'Christ washing the disciples' feet' as the Prado museum reopens to public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

People wearing protective face masks queue near a musician wearing a protective face mask, while they wait to enter at the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

Visitors wearing protective face masks look at Hieronymus Bosch's painting 'The seven deadly sins and the four last things' at the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

Visitors wearing protective face mask look at the paintings at the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

A man stands next to Spanish artist Francisco de Goya's painting 'La marquesa de Santa Cruz' as the Prado museum reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

A man checks his body temperature to enter to the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

A man checks his body temperature to enter to the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

A musician wearing a protective face mask perfoms next to Spanish artist Diego Velazquez's painting 'Las Meninas' as the Prado museum reopens, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

Musicians perfom next to Spanish artist Diego Velazquez's paintings as the Prado museum reopens amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina TPX IMAGES OF THE DAY

Spanish Minister of Culture Jose Manuel Rodriguez attends the reopening of the Prado museum to public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. The banner reads ''Reunited, the Prado like you've never seen it'' .REUTERS/Juan Medina

A woman wearing a protective face mask salutes as people hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

A woman wearing a protective face mask and a shield looks on as people gather to hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

People wearing protective face masks gather to hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

People wearing protective face masks hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

A man wearing a protective face mask with the Spanish flag looks on as people gather to hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

A woman wearing a protective face mask salutes as people hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

A worker wearing a protective mask arranges clothes in a mannequin at Desigual store, as some Spanish provinces are allowed to ease lockdown restrictions during phase one, amid the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, June 4, 2020. REUTERS/Nacho Doce

A woman wearing a protective face shield and mask tries on clothes into a Desigual store, as some Spanish provinces are allowed to ease lockdown restrictions during phase one, amid the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, June 4, 2020. REUTERS/Nacho Doce

A man carries a woman next to members of the orchestra after a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

People wear protective face masks as they attend a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Acolytes leave after a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Archbishop Juan Jose Asenjo leaves after a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

A sign is seen at a candlelit vigil for George Floyd following his death in Minneapolis police custody, at Catalunya square in Barcelona, Spain June 4, 2020. REUTERS/Nacho Doce

Roses lie next to a sign during a candlelit vigil for George Floyd following his death in Minneapolis police custody, at Catalunya square in Barcelona, Spain June 4, 2020. REUTERS/Nacho Doce

Andalusian regional president Juan Manuel Moreno wearing a protective face mask leaves after a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Candles lie on signs during a candlelit vigil for George Floyd following his death in Minneapolis police custody, at Catalunya square in Barcelona, Spain June 4, 2020. REUTERS/Nacho Doce

Members of the orchestra and choir of the University of Seville wear protective face masks as they take part in a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

A woman wearing a face mask attends a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

A woman wearing a face mask attends a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

People hold signs in protest against the death in Minneapolis police custody of African-American man George Floyd, during a candlelit vigil at Catalunya square in Barcelona, Spain June 4, 2020. REUTERS/Nacho Doce

People light candles during a candlelit vigil for George Floyd following his death in Minneapolis police custody, at Catalunya square in Barcelona, Spain June 4, 2020. REUTERS/Nacho Doce

People hold signs in protest against the death in Minneapolis police custody of African-American man George Floyd, during a candlelit vigil at Catalunya square in Barcelona, Spain June 4, 2020. REUTERS/Nacho Doce

A woman wearing a face mask attends a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

People wearing face masks hold hands during a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

A woman attends a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Archbishop Juan Jose Asenjo conducts a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Members of the orchestra and choir of the University of Seville take part in a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

People wear protective face masks as they attend a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

People wear protective face masks as they attend a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Acolytes wear protective face masks as they attend a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Acolytes wear protective face masks as they attend a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Andalusian regional president Juan Manuel Moreno wears a protective face mask as he attends a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

Andalusian regional president Juan Manuel Moreno wears a protective face mask as he attends a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

A member of the media looks at paintings as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

A museum worker wears a protective mask as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

A member of the media stands next to Rubens and Goya paintings as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

A museum worker installs social distance markers as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

A museum worker wears a protective mask as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

A member of the media gets his temperature checked upon entering the Prado museum while it prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

Members of the media work as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

Museum workers remove an old poster from the outside of the Prado museum as it prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

A museum worker wears a protective mask as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

New information tags are displayed as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

Social distance markers are seen on the ground as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

Social distance markers are seen next to Spanish artist Diego Velazquez's painting 'Las Meninas' as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

A member of the media stands next to Spanish artist Diego Velazquez's painting 'Las Meninas' as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera