TOPSHOT - The Statue of Christ appears behind clouds from the Sao Jorge Castle in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

TOPSHOT - A tourist rides a scooter in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A waiter carries chairs early in the morning before the reopening of cafe terraces after the Portuguese government eased coronavirus restrictions in Lisbon on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A waiter cleans tables early in the morning before the reopening of cafe terraces after the Portuguese government eased coronavirus restrictions in Lisbon on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A woman walks past the iconic Nicola cafe before the reopening of cafe terraces after the Portuguese government eased coronavirus restrictions in Lisbon on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A woman takes pictures of the 25th April bridge from the Sao Jorge Castle in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A peacock is silhouetted at the Sao Jorge Castle backdropped by the 25th April bridge in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A peacock is silhouetted at the Sao Jorge Castle backdropped by the 25th April bridge in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A peacock is silhouetted at the Sao Jorge Castle backdropped by the 25th April bridge in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A TAP Portugal plane flies over the 25th April bridge in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A TAP Portugal plane flies over Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

Waiters clean tables early in the morning before the reopening of cafe terraces in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A man walks past people sitting at a cafe terrace in the Chiado district of Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A waiter cleans tables at the Portas do Sol viewpoint Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

People sit at a cafe terrace in the Chiado district of Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

People sit at a cafe terrace in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A man drinks coffee at the Portas do Sol viewpoint Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A waiter cleans chairs at the Portas do Sol viewpoint Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A tourist rides a scooter in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

People sit at a cafe terrace at the Portas do Sol viewpoint in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A man sits at a cafe terrace at the Portas do Sol viewpoint in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

Tourists stand at the Portas do Sol viewpoint in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A tourist visits the Sao Jorge Castle in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

The Statue of Christ appears behind clouds from the Sao Jorge Castle in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A tourist takes pictures at the Sao Jorge Castle in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

A man is silhouetted as the Statue of Christ appears from the Sao Jorge Castle in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP)

People walk past the statue of Portuguese poet Fernando Pessoa by sculptor Lagoa Henriques at the esplanade of the famous A Brasileira cafe in Lisbon as the Portuguese government eased coronavirus restrictions on April 5, 2021. - Portugal reopened museums, cafe terraces and secondary schools nearly two months after tightening Covid-19 curbs following a wave of cases early this year. (Photo by PATRICIA DE MELO MOREIRA / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY MENTION OF THE ARTIST UPON PUBLICATION - TO ILLUSTRATE THE EVENT AS SPECIFIED IN THE CAPTION